英语词汇“mental arithmetic”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	mental arithmetic
释义	mental arithmeticˌmental aˈrithmetic noun [uncountable] the act of adding numbers together, multiplying them, etc. in your mind, without writing them down
随便看	atomic mass unit atomic number atomic radius atomizer atonal atonality atonally atone atonement atop -ator ATP at-risk atrium atrocious atrociously atrociousness atrocity atrophy Atsina atta attach attachment attaché attaché case

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