You need to think clearly.

你需要清晰地思考。

It's important for students to think and learn.

学生思考和学习很重要。

People need to think about these questions carefully.

人们需要仔细思考这些问题。

I prefer movies that give me something to think about.

我更喜欢能让我思考的电影。

I used to think about getting a job as a policeman.

我曾想过找一份警察的工作。

But in the end, you just advised me to think carefully.

但最后，你只是建议我仔细考虑。

It's sad to think of pandas and other animals in danger.

想到熊猫和其他动物处于危险中真让人难过。

Try to think of some solutions to the problems and write them down.

尝试想出一些解决问题的方法并写下来。

Try to think how you and your family can avoid wasting water.

试着想想你和你的家人如何避免浪费水。

This might sound funny, but one only has to think about the Earth.

这听起来可能很滑稽，但只需想想地球。