at no extra charge
US /æt noʊ ˈekstrə tʃɑːrdʒ/
UK /æt noʊ ˈekstrə tʃɑːrdʒ/

短语
1.
免费, 不额外收费
without having to pay any additional money; for free
示例:
•
The hotel provides a shuttle service to the airport at no extra charge.
酒店免费提供前往机场的接送服务。
•
You can upgrade your meal to a large size at no extra charge today.
今天您可以免费将餐食升级为大份。
在 Lingoland 学习这个单词