全免费用英文怎么说

全免费用英语表达方式为 "comppmentary" 或 "free of charge"。

来源: "comppmentary" 来源于拉丁语 "complementarius"，意思是 "补充的"。"free of charge" 则是由 "free"（免费）和 "of charge"（费用）两个词组合而成。

例句:

This hotel offers comppmentary breakfast for all guests. (这家酒店为所有客人提供免费早餐。)
The concert is free of charge. (音乐会免费。)
The company offers comppmentary Wi-Fi to all customers. (公司为所有客户提供免费 Wi-Fi。)
The service is comppmentary with the purchase of a meal. (购买餐饮后服务是免费的。)