打洞 dǎdòng to dig a hole Origin Definitions Defs Strokes Stroke Words Sentences Sents 打洞机 dǎdòngjī hole puncher A tool used for making holes in materials like paper or metal; hole punch or perforator钻天打洞 zuāntiāndǎdòng to use every possible means (idiom) to go to any length or use every possible means to achieve a personal goal; to seize every opportunity to secure gain