Article 4 Travel agencies shall observe the principle of voluntariness, equality, fairness, and honesty, enhance the service quality and protect the legitimate rights and interests of tourists.是什么意思_Article 4 Travel agencies shall observe the principle of voluntariness, equality, fairness, and honesty, enhance the service quality and protect the legitimate rights and interests of tourists.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句