arithmetic
US /əˈrɪθ.mə.tɪk/
UK /əˈrɪθ.mə.tɪk/
1.
算术, 计算
the branch of mathematics dealing with the properties and manipulation of numbers
:
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Basic arithmetic skills are essential for everyday life.
基本的算术技能对日常生活至关重要。
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He struggled with arithmetic in school, especially multiplication.
他在学校时算术很差，尤其是乘法。