乘热打铁

Explanation: Analogy to seize the opportunity to do things, speed up 　　Usage: Partial official; as object, attribute; with compliment 　　Source: Lao She, "Four Generations": "He felt that the boss is really a lovely place; So he decided to take the iron is hot, so say the net." Thesaurus:  The mill cannot grind with the water that is past., speed is precious in war, a speedy fight dispatch, seize a chance, Have no choice but Or ease, avail oneself of Hydration mud, seize every minute and second, against time, Cut the Gordian knot, Broken mess knife, Now (in the time) or never!, Opportunity knocks but once., Time and tide wait for no man., Time and tide wait for no man Antonym Group:  There is still time to mend, Zhicuojiugai, take measures in time, Gu Dog Your Brother