我们大部分时间在图书馆里读书we read books in the library

翻译：We spend most of our time reading in the library（短语：spend time (in) doing sth 花费时间做某事）

spend的用法：

1. spend time ／money on sth.在……上花费时间（金钱）

   例句：I spent two hours on this maths problem.这道数学题花了我两个小时.

2. spend time ／money (in) doing sth.花费时间（金钱）做某事

   例句：They spent two years (in) building this bridge.造这座桥花了他们两年时间

3. spend money for sth.花钱买…….

   例句：His money was spent for books.他的钱用来买书了

你好，翻译如下：
我们大部分时间在图书馆里读书
we read books in the library in most of our time.
或者
we use most time to read books in the library

We read books in the library most of the time.