I sit down, thread a needle, snip off an old button.

我坐下来，穿好针，剪下了一粒旧钮扣。

《柯林斯英汉双解大词典》

And there may be a way to keep cells from biting off more than they can swallow-snip off the nanotubes' rounded tips.

可能存在一种避免细胞吞噬过量的方法——切除纳米管的圆形端部。

youdao

I don't actually know exactly what it would take, but you just cut off and snip the relevant nerve endings so that we're no longer able to engage in that higher order thinking.

我不知道手术到底怎样做，但只要切除相关的神经末梢,让我们无法进行,更高层次的思维。

耶鲁公开课 - 死亡课程节选