1.on the basis of 根据，在……的基础上

　　例句:

　　Our trade is conducted on the basis of equality.

　　我们是在平等的基础上进行贸易。

　　2.for the better 好转,向好的方向发展

　　例句：

　　I trust that things will take a turn for the better in the near future.

　　我期待着在不久的将来事情会有所转机。

　　3.on board 在船(车、飞机)上

　　例句：

　　We went on board Athens yesterday morning.

　　我们昨天早晨登上雅典号。

　　4.out of breath 上气不接下气

　　例句：

　　I ran to the theater all along and was out of breath.

　　我一路跑到剧院上气不接下气。

　　5.on business 出差

　　例句：

　　I am here on business as opposed to a holiday.

　　我在这里是办公事而不是度假。