1.all the time 始终
例句:I fiddled at it all the time.
我一直在忙于那件工作。
2.turn to 变成
例句:The ice turned to water.
冰化成水了。
3.act on 行动
例句:We must act on the premise that the worst can happen.
我们必须在可能发生最坏事态的前提下行动。
4.infused with 灌输
例句:Many of the girls seemed to be infused with excitement on seeing the snow.
看到雪,许多女孩似乎一下子变得兴奋起来。