请帮我翻译成英文。最好用简单的词汇。

1 What should we do in the university?

2 As we know, we are going to take the CET4 Examination, therefore we need to work hard.

3 We need to learn from the books as well as to develop our abilities.

4 The college students ought to make full use of the library and the Internet to develop our ability of learning independently.