There was no price of objects or things that could be determined without taking these judgements into account, as manifested by markets.
像市场证明的一样，不把这些判断考虑进来不能决定事物的价格。
The call method can deal with these objects without additional programming effort for the user.
call方法能够处理这些对象，同时不需要用户进行额外的编程工作。
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