例句：

　　1、He had very little in common with his sister.

　　他和姐姐幾乎沒有什么共同語言。

　　2、Oil pollution is the commonest cause of death for seabirds.

　　石油污染是造成海鳥死亡最常見的原因。

　　3、This decision was taken for the common good.

　　作出這個決定是為了共同的利益。