Kapnometer
烟密度计
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
Don't worry. You'll get used to it in no time.
别担心，你很快就会习惯的。
While early settlers had killed bison for food, now the killing became more widespread.
早期的殖民者只是以杀野牛为食，这时屠宰野牛就更为广泛了。