The home team was beginning to gain the upper hand.

主队正开始占上风。

The young player endeavors to gain the upper hand.

年轻的选手努力让自己占上风。

If the pure intellectuals gain the upper hand, then cultism may rule China.

如果让纯知识分子占了上风，那么个人迷信之风就可能统治中国。

Were the arrests an attempt to unsettle Rio and gain the upper hand in the negotiations?

逮捕力拓雇员是否是为了令力拓不安，以及在谈判中占得上风？

China made that promise as part of efforts to gain the upper hand in global climate-change negotiations.

中国的这一承诺在一定程度上是为了努力在全球气候变化谈判中占据上风。