空入宝山 kōngrùbǎoshān to waste an opportunity Origin Definitions Defs Strokes Stroke Words Sentences Sents 空 kōng in vain to no avail; for nothing; uselessly; fruitlessly入 rù verbparticle to enter to enter; to go into; to move from outside to inside宝山 寶山 bǎoshān mountain of treasures A mountain where treasures are hidden; a place rich in resources or knowledge