make an unnecessary move; bring sth. of which there is plenty; burn daylight; carry [send] coals to newcastle; fan the breezes; knock at an open door; take a superfluous action; the action [measure; step] just taken was really unnecessary.; water one's grass after a good rain
一举成名 spring into fame; achieve instant fame; become famous overnight;become famous with one move; bound into fame; make one's name known at a single attempt; vault into prominence 一举成名天下知 gain worldwide fame and success overnight
一举多得 achieve many things at one stroke; answer multiple purpose; kill two birds with one stone
一举两得 shoot two hawks with one arrow; achieve two things at one stroke; butter both sides of one's bread; get a double advantage; get two results from one effort; kill two birds with one stone; serve two ends; serve a double purpose
一举一动 every [any] movement [action; move]; every act and every move; each and every move; every particular gesture and behavior 我们新来乍到, 得注意自己的一举一动。 we're newcomers here and must be careful with what we do