Overall, this is a very useful book.
总的来说，这是一本很有用的书。
That isn't a useful book, is it?
那不是一本有用的书，是吗？
This is a useful book, isn't it?
这是一本有用的书，是吗？
那是一本非常有用的书。
这是一本很有用的书。
这是本很有用的书。
这是一本很实用的书。
它是一本非常有用的书。
这是一本非常有用的书。
这是本有用的书。
这是一本有用的书。
那是一本有用的书。
To be sure, that's a very useful book.
确实，那是一本很用的书。
Our dictionary is our most useful book.
字典是我们最有用的书。
This is the least useful book of the four.
这是四本书中最没有用的一本。
That's a useful book. I have read it already.
那是本有用的书，我已经看完了。
This is a useful book for beginners in English.
这是一本对英语初学者有用的书。
You can borrow this useful book from the library.
你可以从图书馆借到这种有用的书。
You can borrow this useful book from the library .
你可以从藏书楼借到这种有效的书。
This is useful book and what is more, it is interesting.
这是一本有用的书，而且很有趣。
It is a useful book and, what is more, not an expensive one.
这是有用的书，更难得的是不贵。
It is a useful book, and, what is more, not an expensive one.
这是本很有用的书，再说也不贵。
I think dictionary is the most useful book, because it can teach us a lot.
我觉得字典是最有用的书本，因为它能教给我们很多知识。
After you have learned to use a dictionary, it can become your most useful book.
当你知道如何使用它之后，它将成为你最有用的书本。
Marking a book is a useful skill, but it's important to do it right.
在书上做标记是一项有用的技能，但重要的是要做对。
This book is packed with useful information.
这本书里充满了有用的知识。
It has many omissions; even so, it is quite a useful reference book.
那本书有许多遗漏之处，即使如此，尚不失为一本有用的参考书。
It has many omissions; even so, it is quite a useful reference book.
那本书有许多遗漏之处，即使如此，尚不失为一本有用的参考书。
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