because后面加句子还是短语

because后面加句子；because of后面接短语；

例句

They are here because of us.

他们是因为我们来这里的。

Life was harder then because neither of us had a job.

那时生活比较艰苦，因为我俩都没有工作。

We couldn\'t understand them because they were talking in Chinese.

我们听不懂他们在讲些什么，因为他们说的\'是汉语。

His school work is suffering because of family problems.

由于家庭问题，他的学业日渐退步。

Two players are out of the team because of injury.

两名队员因伤退出了比赛。