这是什么？这是一本书。

What is this? This is a book.

youdao

这是什么？它在哪儿？是一本书，在桌子上。

What's this? Where is it? It is a book. It is on the table.

youdao

这是什么类型的书？

What kind of book is it?

youdao

这是什么？是我的英语书。

What's this? It's my English book.

youdao

这是什么？ - - -是一本书。

What's this? — It's a book.

youdao

如果你曾经想知道是什么原因导致癌症，为什么医生不能治愈它，这是你的书必须读信息。

If you have ever wondered what causes cancer, and why doctors can't cure it, this is the informative book you must read.

youdao

这是什么？它是一本书。

What's this? It's a book.

youdao

这是什么？它是一本书。

What's this? It's a book.

youdao