1. take steps to 采取措施...
We must take steps to rectify the situation.
我们一定要采取措施整顿局面
。2. speed up 加速
Action had been taken to speed up the release of cheques.
已采取行动来加速支票的发放
。3. go back into 回到...状态;进入
I must go back into the water, or I will die.
现在我必须回到水里,否则我会死的
。4. in charge of 负责
I was put in charge of the office.
他们让我负责管理这个办公室
。