ㄧㄤˇyǎngㄅㄧㄥbīngㄑㄧㄢqiānˋㄩㄥˋyòngㄗㄞˋzàiㄓㄠzhāo

  1. 長期培訓軍隊一時用兵演義·》:說話的自古養兵千日,用在一朝。』平時著用如何倉卒募兵?」養軍千日,用在一朝」。

lit. train an army for a thousand days to use it for one morning (idiom)​, fig. extensive preparation eventually pays off