Backsiphonage
反虹吸
🗣️ 情景例句
Chances are ten to one that we'll have a economic recession.
我们十有八九会陷入经济衰退。
Two or three of them look familiar.
我认识他们中的两三个。
Is this the man that you served, Caroline?
卡罗琳，这就是你接待过的那个人吗？