Smokometer
烟密度计, 烟尘计
🗣️ 情景例句
Mary, we're going to miss you.
玛丽，我们会很想你的。
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
Where are you staying in Guangzhou? I hear that the hotels there are very expensive.
在广州你打算住在哪儿？我听说那里的旅馆收费很高。