算数，指算术；承认有效。见《三国志·吴志·陆绩传》：“ 绩 容貌雄壮，博学多识，星历算数，无不该览。”
双语例句原声例句
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毕竟，只有真正的朋友才算数。
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个别情况不算数。
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他看上去像是个说话算数的人。
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In fact, there are some very old books that show this as the average, the sum divided by two arithmetic mean, but the modern practice is to use the geometric mean.
事实上，一些很老的书籍上,平均的定义就是算数意义的，总的来说被分为两种算数意义，但现代我们多用几何意义。
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So even at my level of arithmetic that's a lot less than 30%.
就我的算数水平都知道这绝对少于30%
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There's almost an arithmetic relationship theory that they put forth.
他们提出的是基于算数关系的理论
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