立 ㄌㄧ ˋ lì 竿 ㄍㄢ gān 见 ㄐㄧㄢ ˋ jiàn 影 ㄧㄥ ˇ yǐng 立 ㄌㄧ ˋ lì 竿 ㄍㄢ gān 見 ㄐㄧㄢ ˋ jiàn 影 ㄧㄥ ˇ yǐng lit. set up a pole and see the shadow (idiom); fig. instant effect quick results