今天,老师布置了特殊的作业:回家制作一项科技小制作。就在我一筹莫展的时候,不经意间看到了桌上的牙签,突然灵机一动:何不用这些牙签做一个小竹筏?这应该很有意思吧。我准备了一些材料:一盒牙签、一卷细线等。制作时,我首先把细线对折,放在一根牙签的两端;然后,用线把牙签系紧;接着,把第二根牙签紧挨着第一根放在细线上,再像刚才那样用线系紧,它们 Today, the teacher arranged a special assignment: home made a small technology production. Just when I do nothing, I saw the toothpick on the table inadvertently suddenly brainstorm: why not use these toothpicks to make a small bamboo raft? This should be very interesting. I have prepared some materials: a box of toothpicks, a thin thread and so on. When I make it, I first fold the thin thread over two ends of a toothpick; then tie the toothpick with the thread; then put the second toothpick next to the first one on the thin thread, That line with tight, they