“争分夺秒”，字面意思是不放过一分一秒（seize every minute and second），形容对时间抓得很紧，充分利用时间。可以翻译为“make full use of every minute; work against the clock。”
例句：
他们正在争分夺秒工作，设法把人们从瓦砾中活着救出来。
They’re working against time to try and get people out of the rubble alive.
潮水开始上涨，应急部门正在争分夺秒地工作着。
The emergency services were working against the clock as the tide began to rise.
医生们争分夺秒地抢救他的生命。
Doctors raced against the clock to save his life.
