Approval switches the focus to the Senate, where Democrats face the difficult task of achieving a 60-seat majority to approve a version there.

VOA: standard.2009.11.08

Gallium arsenide switches ten times faster than silicon All of a sudden,I've got a clock speed ten times faster with no change in design.

砷化镓启动的速度是硅的10倍,突然，我得到了10倍快的时钟速度,但是设计没有发生任何改变。

麻省理工公开课 - 固态化学导论课程节选

With that, you have two teams obviously the offense and defense which switches with every play.

你可以看到两支队伍，很明显的在每场比赛中转换着进攻和防守。

美式足球 - SpeakingMax英语口语达人