21-11-15 水滴石穿，字面意思是水不断地滴，可以滴穿石头（constant dripping water wears through the rock），比喻坚持不懈，集细微的力量也能成就难能的功劳（persistence leads to success）。与英文习语little strokes fell great oaks意思相近，表示large, seemingly impo...