| 单词 | rational number |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔arithmetic〕The mathematics of integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division.算术：整数，有理数，实数或复数进行加，减，乘和除的运算美国传统〔tuning system〕An ordered collection of intervals that can be precisely expressed by rational numbers.定音系统，调音系统：一连串有次序的音程，可以用有理数字精确表示美国传统 |
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