2、返回原處；復原

　　He was glad to be home again.

　　他很高興又回到家了。

　　3、增加；多

　　The cost is about half as much again as it was two years ago.

　　現(xiàn)在的價格比兩年前提高約一半。

　　4、再說；其次

　　And again, we must think of the cost.

　　再說，我們必須考慮成本。

　　5、（引出相對照的事實或看法）再說，另一方面

　　We might buy it but then again we might not.

　　我們可能買，不過也可能不買。

　　6、請再說一遍

　　What was the name again?

　　叫什么名字，再說一遍好不好？