Arbitraging
v. 套汇, 套利（arbitrage的现在分词形式）
🗣️ 情景例句
I don't know for sure.
我不太清楚。
How much is the admisssion fee?
入场费要多少钱？
'The strap needs mending,' said Mrs.Sterling later, 'but they did not steal anything.'
“这提包带需要修理，”斯特林夫人事后说道，“不过他们什么也没偷走。”