That could be good advice. If you strike high up on a tree with an axe, the chip of wood that is cut off will fall into your eye.

VOA: special.2010.01.17

If you have DNA fragments, so this is DNA that you've cut up into fragments using restriction enzymes for example.

如果你有DNA片段,例如有一段你用限制酶,切割成片段的DNA

耶鲁公开课 - 生物医学工程探索课程节选

Some time around this period of time,in early Christianity, somebody got the big idea, "Hey,let's cut up the scroll into pages, and sew the pages together. And then,put it all in a book.

大概在这段时期，在早期的基督教里，有人想出了一个好主意，即把书卷断成张页，并用线一张张连起来使之成书。

耶鲁公开课 - 新约课程节选

I could cut that up into fragments, and I could search in these fragments to try to find the one that has the insulin gene on it.

我把那部分切成碎片,然后从中找到有胰岛素基因的那一段

耶鲁公开课 - 生物医学工程探索课程节选