一锤子买卖 yīchuízimǎimài one-shot deal Origin Definitions Defs Strokes Stroke Words Sentences Sents 一 yī numeral one one; the number 1; single; alone锤子 錘子 chuízi noun hammer tool for hitting things, consisting of a heavy metal or wooden head and a handle买卖 買賣 mǎimài business buying and selling; commerce; to trade; a business transaction