我们不正像是一本书的上下册吗？

Are we not like two volumes of one book?

youdao

高数上下册看了一遍，书上例题看过一次后又做了一遍，很多推导自己也写了一遍（大部分证明是对着书抄，但是印象很深刻）。

Counted fluctuation book high to look, after the example on the book has looked, did again, a lot of him derivation also were written (major proof is copy to the book, but impression is very deep) .

youdao

高数上下册看了一遍，书上例题看过一次后又做了一遍，很多推导自己也写了一遍（大部分证明是对着书抄，但是印象很深刻）。

Counted fluctuation book high to look, after the example on the book has looked, did again, a lot of him derivation also were written (major proof is copy to the book, but impression is very deep) .

youdao