我不擅长算术，而我妹妹却有一个精于数字运算的超级脑袋。
I have no head for figures, but my sister is blessed with a superb head for figures.
它还有助于确定源和目标之间的关系类型，比如聚合、转换和算术运算。
It also helps in types of relationship between source and target, such as aggregations, transformations, and arithmetic operations.
PHP还有用于算术运算的自动类型转换。
PHP also has automatic type conversion for arithmetic operations.
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