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	linebacker lined line dance line dancing line drawing line drive line graph line-item veto lineman linen linen closet line of best fit line of scrimmage line of symmetry liner liner notes line segment linesman line symmetry line-up -ling linger lingerer lingerie lingering

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