●against ˈtime ( against the ˈclock) if you do sth against time, you do it as fast as you can because you do not have much time抢时间；争分夺秒◆We’ve only got two days to find a replacement, so we’re racing against time.我们只有两天的时间找接替者，所以我们正在抓紧时间。◆They’re working against the clock to try and get people out of the rubble alive.他们分秒必争，努力把人们活着从瓦砾中救出来。