My time spent in the library was very productive.

我花在图书馆的时间很有收获。

《牛津词典》

In my spare time, I often go to the library and read some books.

在我的业余时间，我经常去图书馆看书。

youdao

In my spare time I enjoy reading in the library.

课余时间我喜欢去图书馆读读书、看看报。

youdao

In my spare time I enjoy reading in the library.

课余时间我喜欢去图书馆读读书、看看报。

youdao