靠ㄎㄠˋ山ㄕㄢ吃ㄔ山ㄕㄢkàoshān‑chīshān，靠ㄎㄠˋ水ㄕㄨㄟˇ吃ㄔ水ㄕㄨㄟˇkàoshuǐ‑chīshuǐ

  1. 指充分利用現成的有利資源或條件做事或謀生。例 「靠山吃山，靠水吃水，我們住在海邊，當然是以捕魚為生」、「這個風景區的導遊多半都是當地人，真可說是靠山吃山，靠水吃水了」。

英lit. the mountain dweller lives off the mountain, the shore dweller lives off the sea (idiom)​, fig. to make the best use of local resources, to exploit one's position to advance oneself, to find one's niche, to live off the land