"That's right, that's why we originally planned to destroy those eggs with gasoline." Natasha said, "Creatures that like moisture must be afraid of flames. ”

"That's true, but if you like to get wet, you don't necessarily need to keep your body moist all the time." Bai Youwei thought for a moment and began to crawl towards the front of the ventilation duct, "Follow me." ”

The people in the back were stunned, "Where are you going?" ”

"Go find Yuri." Bai Youwei climbed to the fork of the ventilation duct and looked left and right, trying to distinguish the location, "...... I came up with an idea that would be perfect for dealing with those little monsters. ”

She turned a corner and continued to crawl forward, regardless of whether the people behind her followed.

There were two people between Natasha and her, and she wanted to get up and ask clearly, but she couldn't get close, so she could only ask hurriedly in the back, "What's the idea?" ”

Bai Youwei crawled in front and said, "These monsters called xenomorphs look quite like insects, do you know what insects rely on to breathe?" ”

Ada: "By mouth? ”

Bai Youwei paused, the corners of her mouth twitched, and replied: "Some insects breathe through the valve trachea, such as cockroaches, ants, and locusts...... They have a row of small circular holes on each side of their abdomen, which are equivalent to human nostrils, and some insects, such as dragonfly larvae and mayflies, breathe by gills. ”

"Xenomorphs don't live underwater, so they don't breathe by gills." Shen Mo said, "It is more likely that the valve will breathe. ”

"Hmm." Bai Youwei nodded slightly, "They look like arthropod insects, and most arthropod insects breathe through the valve stomata, but it's strange that this kind of insect usually doesn't make itself slimy." ”

Ada also turned the corner and muttered, "Yes, the body is wet, and the air holes will definitely be blocked, so how can you breathe?" ”

"There is another way of breathing...... Bai Youwei said, "the most typical example of body wall breathing is earthworms." ”

Natasha was surprised: "Earthworms? ”

The appearance of the xenomorph, which looks like a cockroach when crawling and a lizard when standing upright, is really difficult to associate with the soft-bodied creatures of earthworms.

Bai Youwei said: "Although they look different, the habits of secreting mucus are quite similar. Earthworms have abundant capillaries on their skin, and oxygen will first dissolve in the mucus on the surface of the body, then seep into the body wall, and then enter the capillaries of the body wall, so it needs to constantly secrete mucus to keep the body moist. In other words, without mucus, the earthworm would die. ”

After hearing this, Natasha suddenly realized, pondered carefully for a while, and became more and more unwilling in her heart, and sighed: "If only there was gasoline, burn them!" ”

Even if they don't burn to death, the dry environment will definitely make them miserable.

"I can still find a way to get a few barrels of gasoline, but in this situation, it is not suitable to use it......" Bai Youwei spoke slowly in front, calm, "If it burns, the smoke will definitely enter the ventilation duct, and we will be smoked to death." ”

Natasha: "That...... Shall we not light the fire first, and then light the fire when it leaves the ventilation duct? ”

"Don't be that troublesome." Bai Youwei stopped, and directly below her at this moment happened to be the tool room where Yuri was.

She tapped the partition twice and whispered, "Yuri~"

Yuri had already heard them and asked, "How's the situation outside?" ”

"At least 80% of the hatches, it's quite a lot anyway."

Bai Youwei moved forward, vacating a place so that Shen Mo could come over and pry open the mesh partition of the vent.

Yuri said with a solemn expression: "If it's 80%, our sub-bombs will definitely not be enough, and there are still explosives, but we must think carefully, not only to find a way to gather those aliens, but also to lead them to a suitable place for detonation ......."

"No need to ......," Bai Youwei stretched out a small hand from the pried open vent and waved at Yuri, "Take that bottle of toilet cleaner on the shelf behind you...... Yes, that's it, the big bottle, hand it to me. ”