书的主干部分关于身体的姿势、动作和能量，这部分吴先生解释起来没有一点困难，导言部分基本是一篇关于形而上学的文章。

While the main body of the book was about postures and movements of the body and energy, which Mr. Wu had no trouble interpreting, the introduction was basically a treatise about metaphysics.

youdao

到目前为止，吴先生有六部书出版了。

So far Mr Wu has had six books published.

youdao

然后，吴夏丽就回到了座位上坐着看英语书或读写单词。

Then, Miss HA Lai sat on the back seat book or write a word of English.

youdao