Arbitraging
v. 套汇, 套利（arbitrage的现在分词形式）
🗣️ 情景例句
What time should I call back?
我应该何时再打来？
Good morning.
早晨好！
The inspector began to look for fingerprints, while the constable checked that the front door locks had not been forced,
巡官开始搜寻指纹，警察经检查发现大门锁头并无撬过的迹象。