钻天入地 zuāntiānrùdì leave no stone unturned Origin Definitions Defs Strokes Stroke Words Sentences Sents 钻 鑽 zuān verb to enter to make one's way into; to go through or under a narrow space; to thread through天 tiān noun sky sky; heavens; the space above the earth入 rù verbparticle to enter to enter; to go into; to move from outside to inside地 dì noun earth The earth; the ground; land; soil; fields