against time 争分夺秒;抢时间;
all the time(在某段时间内)一直,始终
at all times 总是;随时;永远
Farm work is seasonal, so we must race against time.
农活有季节性,必须抢时间。
I can't be doing with people who complain all the time.
我无法忍受那些整天发牢骚的人。
Doctor Liu is on call at all times.
不论什么时候刘医生随叫随到。
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