刀不磨要生锈，人不学要落后 dāobùmóyàoshēngxiùrénbùxuéyàoluòhòu knowledge is like a blade Definitions Defs Origin Strokes Stroke Words Sentences Sents 刀不磨要生锈，人不学要落后 刀不磨要生鏽，人不學要落後 dāobùmóyàoshēngxiùrénbùxuéyàoluòhòu knowledge is like a blade A blade will get rusty if it is not sharpened; a man will fall behind if he doesn't study.
刀不磨要生锈，人不学要落后 刀不磨要生鏽，人不學要落後 dāobùmóyàoshēngxiùrénbùxuéyàoluòhòu knowledge is like a blade A blade will get rusty if it is not sharpened; a man will fall behind if he doesn't study.
