They textbook contains more explanatory material than models and is therefore hard to plough through.

这本教科书中说说明性材料多于范文，所以难以阅读。

youdao

They textbook contains more explanatory material than models and is therefore hard to plough through.

这本教科书中说说明性材料多于范文，所以难以阅读。

youdao