Backsiphonage
反虹吸
🗣️ 情景例句
Don't worry. The traffic is very heavy at this hour.
别担心。这个时间交通很拥挤。
A blind man will not thank you for a looking-glass.
秋波送盲，白费痴情。
so I got a ladder from the shed in the garden, put it against the wall,
于是，我从花园的小棚里搬来了一个梯子，把它靠在墙边，