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First the methods method is invoked on the string object "hello."
首先，对字符串对象“hello”调用methods方法。
youdao
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Among of them the first two methods are the extension of the net-value method.
三者中的前两者是净利法的推广。
youdao
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Among of them the first two methods are the extension of the net-value method.
三者中的前两者是净利法的推广。
youdao