養兵千日，用在一朝 [ㄧㄤˇ ㄅㄧㄥ ㄑㄧㄢ ㄖˋ , ㄩㄥˋ ㄗㄞˋ ㄧ ㄔㄠˊ; yang3 bing1 qian1 ri4 , yong4 zai4 yi1 chao2] lit. Train an army for a thousand days to use it for one morning. (idiom); fig. extensive preparation eventually pays off ◄ ►
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