| 词汇 | round-down |
| 释义 | round something downphrasal verb with roundverb[ T ]uk /raʊnd/ us /raʊnd/ to reduce a number to the nearest whole or simple number把（数）下舍入，舍弃尾数把（数字）调低为整数 Addition, subtraction, multiplication & division add add (something) up addition sign additive arithmetical deduction half halve highest common factor long division power quadruply quintuple quotient recursion sextuple square subtraction sign table treble |
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