Tianxuan threw the vacuum-packed garbage into the garbage disposal tunnel outside the door and returned to his residence.

The moment he opened the door, he suddenly remembered the last time he saw him in Nicols's house—a disc that would vacuum the floor and wipe it with a cleaning cloth.

So, after he went in, he went directly to Nicos, and after some courtesy, he said, "Nicos, can you give me one of the little family helpers I saw at your house last time?" ”

"Oh! No wonder you performed so well just now, it turned out to be this idea! Nikos held her chin in her hands and looked nonchalant.

"Hey! My eldest lady, just give me one, otherwise how should I clean up this house of hundreds of square meters! Tianxuan said with an embarrassed face and a pleading look.

"Hehehe!" Seeing Tianxuan's appearance, Nikos couldn't help but cover his mouth with his hands and laugh.

"Do you agree or disagree!" Tianxuan watched Nicos laugh from the sidelines, waited for a while, and couldn't help but continue to ask.

"Follow me!" Nicolas said with a wave of his hand.

"Huh!" Tianxuan answered and followed her.

When he walked into the bedroom, he saw Nicolas pick up a green disc from the foot of the bed, hold it in both hands, and say, "What do you think this is?" ”

"Oh!" When Tianxuan saw the disc, he immediately pointed at it excitedly and said, "Yes, yes, that's it!" After a few minutes, Tianxuan suddenly reacted and said with a wry smile: "Okay! You're deliberately whetting my appetite, aren't you? ”

"What do you say?" Nicolas asked rhetorically.

Tianxuan didn't argue with Nicos, smiled and walked up to her and asked, "You can teach me how to use it!" ”

"For the sake of your sincerity, I will tell you with great mercy!" With that, Nicolas showed the whole process of manipulating the disc.

After the floor of the bedroom was cleaned, Tianxuan put the disc in the study by himself and operated. When the disc was cleaned, Tianxuan sighed: "It's really a lot easier!" It's just a bit of a fly in the ointment! ”

"What's missing?" Nicolas asked.

Tianxuan tapped his chin with his finger and said, "It's a pity that there are only those who clean the floor, and I have never seen props for cleaning the walls and ceilings." ”

"Yes, how do you think there isn't?"

"Yes?" Tianxuan asked in surprise, "Is there really one?" ”

"Of course there is, we call it Red Crawl for short!" Nicos replied by looking at Tianxuan with a puzzled expression.

"Oh! Sorry, I'm lonely again! We have never seen a prop to clean the walls or ceilings on our floor. ”

"Hee-hee, in that case, I'll open your eyes today!" After a few swings of her finger at herself, Nicos said, "Follow me!" ”

This time, they came to the balcony.

At this time, Tianxuan was looking around, and suddenly found another big red spider underground, and he was immediately startled and took two steps back!

"What's wrong?" Nikos hurriedly asked after seeing Tianxuan's big reaction.

"Be careful!" Tianxuan pointed to the red spider on the ground and shouted, "There is a big red spider on the ground, I don't know if it is poisonous or not, you should avoid it!" ”

"Oh!" Nicolas answered, and bent down to pick up the red spider.

Seeing Nicos look so casual, the stone that Tianxuan was carrying in his heart just now finally put it down, and he took a long sigh of relief and said, "Could it be ...... That's ......"

"Yes, this is Red Crawl, a mechanical spider." Nicolas replied.

"No wonder, you don't react to it at all!" Tianxuan stroked his chest and said.

"Who misses you, always make a fuss!" Nicos raised her head slightly, cocked her mouth, and said with a somewhat superiority smile.

"Huh! That's no way, I haven't seen it! Tianxuan defended himself, "However, the most important thing at the moment is that you have to teach me how to use this red crawl!" ”

"You're right!" Nicolas ran her fingers around the ends of her hair, paused, and said, "Let me gather my thoughts and see where to start." ”

"Hmmm! Waiting for advice! Tianxuan then brought two chairs to Nicos, and when she sat down, he sat down on the other.

Nicolas flipped Red in her hands a few times, then got up from her chair, walked to the wall and crouched down. She pressed the button on the top of the red climb, and saw that in an instant, the red crawl glowed all over her body, and it appeared bright.

"You're good at it!" Nicos said as she put the red crawl in front of her, only to see the red spider suck on the wall immediately.

When the red crawled on the wall, the red light flashed more violently, and soon eight paws stretched out from both sides, which really looked like spiders.

Next, the red crawl began to work. It kept walking up and down the wall, and where it walked, Tianxuan touched it and found that there was really no dust at all, smooth and shiny, but it was just a little wet.

So, Tianxuan rubbed his two fingers together and asked Nicos, "What's the situation with this wet wall?" ”

"Oh! It is a kind of paint that is moisturized and insulated, just like we sometimes wear a mask on our face! Now you understand!" At this time, Black Katy came out and explained.

"Sure enough, the explanation is thorough, and you can understand it as soon as you hear it!" Tianxuan listened to Hei Katy's explanation and hurriedly clapped his hands and praised.

"Oh? I don't know how to explain it! Nicolas pouted, looking a little angry.

"Well...... "Tianxuan scratched the back of his head and said, "Oh! You all have your own unique characteristics! Actually, he originally wanted to say that each has its own merits, but he was afraid that they would not understand, so he changed it to a feature.

"That's pretty much it!" Only then did Nicolas lower his hands from his chest.

After dealing with Nicos, Tianxuan continued to watch the work process of the red climb. I didn't expect to talk to the two beauties with so much effort, and the surrounding walls have been almost cleaned, which is really breathtaking. But there's still to come.

When the surrounding walls were cleared, Red crawled back to the ground to standby.

"And that's the end? Is there another prop on the ceiling? Tianxuan asked suspiciously.

At this time, Nicos squatted down again, picked up the red crawler, turned her head and replied, "Don't worry! There was a quiet watch. With that, she pressed the button again to restart the red crawl, but this time the red crawl glowed a light blue.

"Why did this red climb turn into a blue climb!" Tianxuan said with a smile.

"This is to turn on the upside-down mode!" Nicolas explained.

As soon as Nicols finished speaking, Red Crawl began to move, but instead of climbing directly onto the ceiling, it went to the foot of the wall and touched the wall with its paws, only to see a square box the size of the palms of two adults open on the wall. Next, Red Creep took out 4 small pieces that looked like coals from the inside of the box.

"Can't you paint the ceiling with this black thing!" Thinking of this, Tianxuan couldn't help but laugh.

"What are you laughing at?" Black Katy behind him asked.

"Oh! It's nothing! It's just so exciting to see so many family helpers! Tianxuan immediately regained his composure and replied.

"I see! Don't get too excited, there are so many of these things, I'm afraid you're going to get too excited when you see them! Black Katy squinted her eyes and said with a sinister smile.

"The lesson is that I will correct it!" Tianxuan said seriously.

was chatting with Black Katy when a "bang" sounded. Tianxuan hurriedly turned his head and followed the prestige, only to see that the red climb opened the two sides, and four grooves appeared, and then the four coal blocks were stuck in, and then it climbed directly to the ceiling.

Next, something interesting happened: while Red was crawling on the ceiling, Tianxuan stumbled upon the small particles floating around it, so he pointed and asked, "Hey! Did you see it, there seems to be something floating around the red crawl! ”

"That's the dust that fell from the ceiling!" Nicolas said.

"Dust? Why did they all float up and not fall? Tianxuan's eyebrows were raised high, and his eyelids kept shaking.

"You don't know about this!" At this time, Heikati explained to Tianxuan, "Earlier, Red crawled four pieces of activated carbon to absorb these fine particles! ”

"Nani? Activated carbon? No wonder! Tianxuan only reacted at this time.

Heikati continues: "Activated carbon is a very fine carbon particle, but it has a large surface area, and there are finer pores in the carbon particles—capillaries. This capillary has a strong adsorption capacity and is in full contact with dust due to the large surface area of the carbon particles. When the dust touches the capillary, it is adsorbed and purifies. ”

"I understand this, but I found that the dust has been floating all the time and has not fallen!" Tianxuan pointed to the red crawl again.

"That's because the plasma shield is opened around the red crawl, so the dust is fixed within a certain range, and then the red crawl's own fan keeps blowing up the dust to accelerate the absorption...... Do you understand? ”

Tianxuan looked at Hei Katy and nodded knowingly, and then said: "Well, I understand, so that no dust will fall, and the cleanliness of the ground will be polluted twice, and toxic and harmful substances will be avoided from being inhaled into the human body." ”

"That's the design concept that's true, it seems that you understand quite quickly!" Black Katy said with a smile.

"You're praising me!" Tianxuan said with a smile.

"Praise your size, the smallpox is almost finished, hurry up and stand at the door." Nicolas interrupted their conversation.

"Huh? Why? Tianxuan touched his cheek and looked puzzled.

At this moment, Nicos and Black Carty had already walked out the door. Tianxuan was in the bedroom, looking at the two of them blankly, not knowing why.

Suddenly, just when Tianxuan was stunned, the air began to fill with mist. He hurriedly looked up and saw that it was the red crawl that was spewing mist.

"This is ......" Tianxuan was about to say something, and immediately his mouth and eyes were filled with mist that turned into small droplets.

"Ahem, ahem!" So, Tianxuan hurriedly held his breath and ran out along the door.

No, because he couldn't see the direction clearly, he slammed his head against the door, and when his eyes were full of stars, he was pulled out by Nicolas and Black Katy.

"Ahem, ahem!" Tianxuan squatted down and coughed a few more times, then stood up and took a deep breath for a while before calming down.

After a moment, he asked, "What was the situation just now?" ”

"Oh! It's nothing! It's just spraying air purifier, so tell you to come out quickly! Nicolas said.

"Then why can't you make it clear!"

"You can't blame me, they all shouted that you came out, and if you want to blame, you can only blame you for being unresponsive!" Nicos said, holding her lips.

"Huh!" Tianxuan couldn't refute for a while, and rolled his eyes.

Within seconds, Red Creep returned to the ground after spraying the fog, at which point the fog began to dissipate.

So, Tianxuan stretched out his nose at the door and smelled it: sure enough, there was a fresh and pleasant aroma.

This novel is from Reading Books