1.back down 放弃；让步

例句:He had to back down on plans to backdate the tax changes.
他不得不放弃追溯税收调整的计划。

2.In effect 事实上

例句:That deal would create, in effect, the world's biggest airline.
事实上，这一协议将促成世界最大航空公司的成立。

3.focus on 专注于

例句:Their talks are expected to focus on arms control.
他们的会谈预计会集中讨论军备控制问题。

4.in good time 及时的；提前的

例句:I like to get to airports in good time.
我习惯早早地赶到机场。