Artificial intelligent assistant

subtraction

subtraction
/səbˈtrækʃn; səb`trækʃən/ n
1 [U] process of subtracting 减; 减法.
2 [C] act of subtracting 减; 减法
    Two from five is a simple subtraction. 五减二是简单的减法.

牛津英汉双解词典

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