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每个函数都可以有若干数目不定的参数。
Each function can have a variable number of parameters.
youdao
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在这种情况下，不定义转换函数更好。
In such cases, it is better not to define the conversion operator.
youdao
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在这种情况下，不定义转换函数更好。
In such cases, it is better not to define the conversion operator.
youdao