become是什么意思

　　双语例句：

　　Students should aim to become more independent of their teachers.

　　学生应该努力逐渐减少对老师的依赖。

　　I see he's become a family man.

　　我发觉他已变得很恋家。

　　The environment has become a very hot issue.

　　环境已成为很热门的.话题。

　　He became very weak towards the end of his life.

　　他临终时很虚弱。

　　What became of that student who used to live with you?

　　以前和你住在一起的那个学生后来怎么样了？