争分夺秒;抢时间
if you do sth against time, you do it as fast as you can because you do not have much time
They're working against time to try and get people out of the rubble alive.他们正在争分夺秒,设法把人们从瓦砾中活着救出来。
释义来自《牛津高阶英汉双解词典》第 9 版