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。