reworking

Due to miswork in previous stages, they still need to do rework even after flooring.

由于前面工程的，在地板铺好了，还要返工。

He had done most of the writing and rewriting himself, reworking key passages again and again.

大部分的写与修改工都是他自己完成的, 并一再修改了主要的段落。