Functor can be thought of as a unary predicate with a single argument: it internally evaluates the wrapped binary predicate with two copies of the same argument.是什么意思_Functor can be thought of as a unary predicate with a single argument: it internally evaluates the wrapped binary predicate with two copies of the same argument.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句