释义 |
 | 三下五除二 | | sān xià wŭ chú èr | | 〈成〉 three-down-five-reject-two—neat and quick (originally an abacus formula—when add three to two, three, or four on an abacus, move down a “five” piece of the upper part, and reject two of the two, three, or four in the lower part); in a jiffy |
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