Backsiphonage
反虹吸
🗣️ 情景例句
It certainly is. The sun is shining but there's pleasant breeze. It's lovely.
的确不错。阳光明媚，和风宜人。太舒心了。
I like football.
我最喜欢足球。
No, he doesn't.
不，他不发烧了。