Backventing
背部通气
🗣️ 情景例句
If you'd like to hear some new English songs, I suggest you download them from the web.
如果你想听一些新的英文歌，我建议你上网下载。
They walk as if they were drugged.
他们走路像服了什么药物似的摇晃着。
No, it isn't.It's a ruler.
不，不是，这是一把尺子。