The old cat didn't know how to collect fresh water with a shovel, and its mind quickly flashed through the many functions of the shovel.

Fight.

Chop.

Dig a pit.

Shovel soil.

And fried eggs.

Together, the purpose of the shovel should be like this - fighting with Tang Yue, killing Tang Yue with a shovel, then digging a pit and shoveling soil to bury him, and finally sitting on the grave and frying an egg with a shovel.

But what does this have to do with collecting fresh water?

When the old cat was thinking, Tang Yue had already started to circle with a shovel, he looked down at his feet, and circled around the Eagle spaceship, testing the sand underneath with his feet as he walked around, looking like he really wanted to find a place to dig a hole.

"Old cat, here, come here!" Tang Yue walked out five or six meters, put the long-handled shovel on the ground, and turned around to call the old cat.

The basalt is too hard to dig with a shovel, Tang Yue found a place where there are no large rocks under his feet, the upper layer of this area is gravel, and the lower layer is soil mixed with fine sand, Tang Yue poked hard with a shovel to make sure that manpower can dig it, and then beckoned the old cat to dig a pit together.

"How big of a pit are you going to dig?" The old cat stood on the edge with a shovel - it was not much taller than a shovel.

Tang Yue lowered his head, opened his hand and gestured, and then drew a circle on the sand with a shovel, "Hmm...... Dig a pit with a diameter of one meter and a depth of half a meter. ”

The old cat glanced at him, "You go back first, don't waste the oxygen and electricity of the Mingguang Armor here, I'll dig this pit." ”

"Nope." Tang Yueyi sternly rejected the old cat and picked up the shovel, "Let's dig together, it's faster!" ”

Ten minutes later.

Old Cat: If you're going to continue to use the shovel as a soup spoon in the rest of your work, I suggest you go back now.

Tang Yue: ......

·

·

·

Tang Yue returned to Kunlun Station.

"Tang Yue? Why did you come back first? Mai Dong asked, "What about Mr. Cat?" ”

Tang Yue closed the hatch of the airlock chamber, unloaded the life support system, and took off the Mingguang armor on his body.

"The old cat was digging a hole outside, and he said I didn't know how to use a shovel, and said I made a shovel like a spoon, and he drove me back...... But it doesn't want to think about it, I can't even bend my waist with Mingguang armor, how can I be as flexible as it? Tang Yue pouted.

"Dig a pit?" The girl was curious, "What are you digging holes for?" ”

"I'm going to dig a grave for ourselves and make a grave." Tang Yue said, "When you can't live anymore, just lie down inside......"

Mai Dong's face changed suddenly.

Tang Yue knew that he had said the wrong thing.

"Collect fresh water." "The purpose of digging the pit is to collect fresh water, because we need water to grow tomatoes and carrots, and we don't have enough water...... Aren't we going to use the propellant reaction in the descent stage of the Eagle spacecraft to make water? But the product of the reaction is water vapor, and we need to collect them now. ”

Mai Dong breathed a sigh of relief.

What she is most afraid of is that this person in Kunlun Station will have an accident.

"Is all the work done for today?" Tang Yue asked, "What is the state of the space station?" ”

Mai Dong nodded, "I just came back from a circle, and I found that a piece of heat insulation lining in the cabin had fallen off, I glued it back with transparent glue, and there was nothing wrong with the other cabins...... However, the Dawn Pod still can't get in, and I still haven't been able to find where the crack in the hatch is located. ”

Three months ago, during a resupply mission, the Eagle spacecraft collided violently with the United Space Station, causing severe damage to the Dawn module and creating cracks in the outer walls of the chamber. At that time, the old cat closed the hatch in time, cut off the air circulation, and cut off the power supply, which avoided the loss of pressure of the entire space station, but Mai Dong was alone on the space station and was unable to overhaul the damaged Dawn module.

In the past three months, Mai Dong has tried to enter the Dawn cabin under the guidance of the old cat.

She put on her spacesuit, put on her life support system, and closed the door at the other end of the module, first blocking the air flow between the module and the other chambers, and then opening the hatch of the Dawn.

The moment the crystal module was connected to the Dawn module, the air began to leak.

After two months of silence, the Dawn's cabin was pitch black and completely in a cold vacuum, Mai Dong closed the hatch behind him after entering the Dawn module, and then began to try to find the crack.

This crack is very difficult to find, it is on the outer wall of the space station, Mai Dong cannot see the outer wall directly, and there is a thick inner lining in the cabin, as well as dense experimental boxes and control panels. If you want to repair this crack, you must first find the exact location of the crack, and then remove the instruments and lining in the cabin, which is extremely difficult and the workload is huge, and Mai Dong cannot complete it alone...... The girl wandered around the Dawn Pod for two hours before being called back by the old cat.

Mai Dong once proposed that external repairs could be carried out, but the old cat abandoned the idea after considering the difficulty and danger.

Today's United Space Station has completely abandoned the Dawn module, but fortunately, the absence of this module does not affect the normal use of the space station - the main functions of the Dawn module before were deep space observation and high-energy physics research, which are no longer needed.

Tang Yue...... These days, I've been wondering, if the earth really disappears, can we, as the last two humans in the universe, do something about it? Mai Dong said, "For example, make a record and leave a little trace of human civilization." ”

"Take notes?"

Mai Dong nodded.

Tang Yue asked, "Do you mean to write a memoir?" Write a memoir about the entire human civilization? ”

Mai Dong then nodded.

"We can leave something behind, otherwise in the end, even we will be gone, so what can prove that the earth and humans once existed?"

Tang Yue felt that this was a good idea, to write a memoir of all mankind, to review the development of human civilization, and to make a summary of the survival of all mankind - although this is God's life, he may not have this level and qualifications, but now there is no one else but Tang Yue can do this.

Finally, take a high-end atmospheric name, such as "Once Upon a Time on Earth" or something.

This is the evidence that human civilization once existed.

So that this universe will not forget humanity.

We used to exist.

No matter where the end is, we are trying to survive.

"But I don't learn history very well......" Tang Yue scratched his head, as a pure science and engineering boy, he had a concept of Qin Emperor Han Wushang, but he didn't know anything about the dynastic changes in ancient Egypt.

There is no doubt that making a biography for human civilization is an incomparably huge project, which cannot be completed by Mai Dong and Tang Yue alone, they can only do what they want.

"If you don't understand something, you can ask Mr. Cat." Mai Dong reminded, "Mr. Cat must know. ”

"Yes, if you don't know something, ask the old cat." Tang Yue turned his head to look out the window, and in the distance, the little white cat under the Eagle spaceship was digging a pit with a shovel.

The old cat threw the shovel to the ground and climbed up from the pit.

Tang Yue——! The pit is dug! ”