制造投石机的英语说明文200词

更新时间:2023-05-12 08:09:51 阅读: 评论:0

A man has two things: his hands and his brain.
My little thing is a trebuchet.
The ingredients for making a catapult are: a large piece of cardboard, one chopstick, six rubber bands, a 15-20cm spoon, a roll of tape, a pair of scissors, and a ruler. A piece of wood, a cross screwdriver, a hammer, a rubber band, a piece of cardboard that bends down, and a small plate. Students, are you looking forward to the result?
Before doing this, I looked up the method and history of the catapult: the catapult is a weapon ud in ancient warfare to hurl "heavy" stones (one or more at a time) in a parabolic fashion, destroying enemy walls, making it a great siege weapon.
First, the point of the cross screwdriver is aligned with the upper end of the wood, and then the hammer is aligned with the position of the screwdriver handle, I spent a lot of effort, finally knocked out a hole. This time, I had no trouble finding a bent cardboard and a small plate. Next, I install the small plate on the card and inrt the c
ard into the hole. Finally, I stuck the rubber band to the top of the card, while the other end of the rubber band hung on the wood.
Ah! It's finally done. I put a little rock in the plate, and I pulled the rubber band off, and I let it go, and the rock almost hit my forehead, and it said, "Hey! A: hello! A: hello! I don't play around with this!" All creation depends on labor, labor needs the hand and brain. I love my little thing, which is the trebuchet.

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