because

[bɪˈkɔz]

be-由于 + cause 原因 → 由于某个原因 → 因为

• They are here because of us.

  他们是因为我们来这里的。

  《牛津词典》

• She's been off work because of sickness.

  她因病没有上班。

  《牛津词典》

• I did it because they asked me to do it!

  我做这事是因为他们请我做啊！