Article 4 In transactions between business operators and consumers a principle of voluntariness, equality, fairness, honesty and credibility shall be followed.是什么意思_Article 4 In transactions between business operators and consumers a principle of voluntariness, equality, fairness, honesty and credibility shall be followed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句