become是什麼意思

雙語例句：

Students should aim to become more independent of their teachers.

學生應該努力逐漸減少對老師的依賴。

I see he's become a family man.

我發覺他已變得很戀家。

The environment has become a very hot issue.

環境已成為很熱門的.話題。

He became very weak towards the end of his life.

他臨終時很虛弱。

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

以前和你住在一起的那個學生後來怎麼樣了？