I could hear the car revving outside.
我可以听到外面汽车发动的声音。
But that does not mean that revving up output is a bad idea.
不过，此举并不意味着增加产量是一个坏主意。
The team are revving up for next week's game.
这个队伍对下周的比赛跃跃欲试。
The crime rate is revving up in most big cities.
在多数大城市里，犯罪率都在上升。
Since the introduction of new techniques, the production has been revving up.
自从新技术的引进，产量一直都在增加。
Since the introduction of new techniques, the production has been revving up.
自从新技术的引进，产量一直都在增加。
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