And that's why, then, the one at the bottom will break, and if I pull very slowly, the one at the top will break.

这就是为什么，底部这条会断裂，如果慢慢拉，顶部这个就会断。

youdao

And that is, one has to pull, one has to push.

也就是说，一边拉，一边推。

youdao

And that is, one has to pull, one has to push.

也就是说，一边拉，一边推。

youdao