Although the three girls all expressed their approval of Chen Zhe's ambitious plan, they were inevitably a little apprehensive in their hearts.

Digging clay to burn bricks, and then using bricks to build walls - the plan is too complicated, can the four of them really do it?

Not to mention other problems, first of all, the most obvious question - how can Chen Zhe transport a large amount of clay down from the mountain?

If you want to burn bricks to build a wall, you need a lot of clay, so much clay is afraid that there will be hundreds or thousands of catties, Chen Zhe can't take the rattan baskets made by the girls with rattan baskets to carry the clay down, right?

While they were looking for thorns, the girls began to talk about it.

"Sister, sister Yan'er, how do you think Chen Zhe plans to transport the clay down the mountain?" asked Xiao Qiao.

"Carry it down in rattan baskets, aren't there some rattan baskets in the camp?" guessed Da Qiao.

"What?" Xiao Qiao couldn't help but be frightened when he heard this, "Directly use the rattan basket to carry the clay, the clay is so heavy...... Can we carry it...... And the rattan basket is so rough, what if it scratches the skin?"

Da Qiao shrugged: "If you can't carry it, you can carry it less at a time, you can't let Chen Zhe carry it all alone, right?"

At this time, Yan'er smiled and said, "Don't worry, Brother Xiao Chen will definitely have a better way, and he won't let us directly use the rattan basket to carry clay." ”

"Really?" asked Little Joe, half-convinced, "does he really have a solution to the problem of carrying clay?"

"Definitely. Yan'er said firmly.

......

Meanwhile.

The other side of the camp.

Chen Zhe was walking through the woods with a blood-drinking knife, looking for a tree with a thick trunk.

Soon he saw a mature rubber tree with a trunk diameter of about 1.3 meters.

"This tree grows well, and it is a good ......"

Chen Zhe nodded with satisfaction, and then swung the blood-drinking knife and slashed directly at the tree trunk.

Zheng, Zheng, Zheng......

After a hard slash, Chen Zhe finally succeeded in cutting down the big tree, and then he picked out the thickest part of the trunk and cut out a complete piece of wood along the annual rings.

The wood cut out in this way is the cross-section of the trunk of the tree, and it is also a natural circle with a diameter of 1.3 meters, Chen Zhe carefully peeled off its bark along the edge, and then trimmed the not smooth, regular part to be slightly rounded, and a round wood was ready.

Looking at the round piece of wood in his hand, Chen Zhe thought of an ancient means of transportation—a wheelbarrow.

This round piece of wood is just enough to be used as a wheelbarrow for a wheelbarrow.

Once he had the wheel, Chen Zhe next cut a boxy hole in the center of the wheel with sharp gravel.

This hole is used to penetrate the axle, and the square axle hole allows the wheel to absorb the force and rotate with the axle to avoid slipping in place.

The next step is to make the axles.

Chen Zhe used a long and sturdy branch to cut the middle part into a square that fits the axle hole, and the sides were rounded, which became a beautiful and durable axle.

With the axles and wheels all done, the next thing to do is the frame.

The structure of the frame is a bit more complex, requiring several pieces of wood to be spliced together, but with the experience of making a hand-spinning wheel last time, assembling the frame has become a breeze.

The lower part of the frame is connected to the wheels and axles, and the upper part is left with a pair of handles that resemble horns, and a wooden board is placed on the front side of the handles, just above the wheels, to carry the goods.

When Chen Zhe patiently assembled all these parts together, a simple wheelbarrow was presented in front of him.

But like all the handicrafts he had made in the past, this unicycle was just a useless commodity.

Chen Zhe didn't need to make a high-quality tool at all, he only needed to make a look that could be recognized by the item upgrade system.

The system can leave the rest of the tasks to the system.

Taking advantage of the fact that Yan'er and the Qiao sisters were not nearby, Chen Zhe stared at the wheelbarrow and began to upgrade.

The system quickly recognizes the object in front of it.

[Item detected—a wheelbarrow that falls apart on a single touch.] 】

"Rely on ......" Chen Zhe was speechless for a while, and complained silently in his heart, "If you touch it, it will fall apart?" Is the unicycle I made this time so bad?"

Then the system asked:

[Do you use 100 popularity points to upgrade items?]

"Of course. ”

Chen Zhe made a choice without hesitation, and then the wheelbarrow changed.

[A unicycle that falls apart when touched] - Upgrade - [A unicycle that doesn't like it].

"Keep upgrading!"

[A useless unicycle] - Upgrade - [A simple handmade unicycle].

After two consecutive upgrades, Chen Zhe picked up the wheelbarrow and took a look, only to see that the wooden splicing structure on the car was quite strong, and the wheels were rotating very smoothly.

Such a handmade wheelbarrow is more than enough to transport clay.

"Very good, that's it, I'm afraid it will be a goof if I upgrade again. ”

Chen Zhe pondered in his heart, so he pushed the wheelbarrow and silently returned to the camp.

On the camp at this time.

Yan'er and the Qiao sisters had already used dry thorns to fill the void left by the burning fence.

At this time, Yan'er and Da Qiao were busy making lunch, while Xiao Qiao was boiling water and reeling silk on the side.

Suddenly, a "squeak" and "squeak" sound came from outside the camp, and the three girls all looked in the direction where the sound came from, and then they saw Chen Zhe pushing a wheelbarrow into the door, and this ingenious wheelbarrow immediately attracted the attention of the three girls.

"Wow! this is ...... Is this a trolley?" asked Big Joe in surprise.

"Brother Xiao Chen, did you build a trolley with your own hands?" Yan'er was even more overjoyed.

When my grandfather was a child, he used this kind of cart when he was working in the field, and every time the autumn harvest season, his grandfather would push such a cart to send the corn from the field home.

Chen Zhe smiled lightly and pushed the trolley into the yard.

At this moment, he felt that this simple and practical trolley was simply very stylish, even Ferrari and Lamborghini were far from being able to compare with its style.

Because on this island, the trolley is an important tool that can increase their productivity, and it is a material guarantee that can directly change their lives.

With the carts, it was possible to transport the clay from the mountain to the camp below.

The three girls had already put down their work and ran to Chen Zhe's side happily.

They lowered their heads and rubbed the trolley that Chen Zhe had built (upgraded) by himself.

"This wheel is made directly from the cross-section of the tree trunk?" Da Qiao exclaimed, "Chen Zhe, you are really creative. ”

"The frame is so sturdy, it's like it was machine-polished. Yan'er said sincerely.

"Great, with this cart, we don't have to carry the clay on our backs, so it saves a lot of effort. Little Joe said happily.