at one's expense
01
由他出钱, 由他买单
used to say who has paid for something
习语
例子
The trip was arranged at the company's expense.
这次旅行由公司出钱安排。
02
(particularly of a joke) in a way that causes harm to someone or makes them embarrassed
贬义
习语
例子
Everyone laughed, but the joke was at my expense.



























