牛津電影裡 60%
由某人付錢;由某人負擔費用
paid for by sb
At our expense.
牛津電影裡 40%
在某人受損的情況下;以某人為代價;跟某人開玩笑
if you make a joke at sb's expense, you laugh at them and make them feel silly
Lloyd got a great deal of enjoyment at my expense when he was alive.
釋義來自《牛津高階英漢雙解詞典》第 9 版