| 释义 |
step up objstep obj up v adv [M]to increase (something) in size, amount or speed增加，加速The police are stepping up their efforts to fight crime.警方正加强他们打击犯罪的力度。It's time we stepped our campaign up.是我们加强竞选活动的时候了。Following the bomb explosion, security has been stepped up at the airport.炸弹爆炸后，机场加强了安全工作。The pace of the reforms is being stepped up.改革的步伐正在加快。If you want to use a piece of American electrical equipment in Britain, you may need to use a transformer to step up the voltage.如果你想在英国使用美国的电器设备，你可能要用变压器来提高电压。
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