Kapnometer
烟密度计
🗣️ 情景例句
Come in please, and take a seat.
请进。请坐。
There should always be exceptions to the rule.
凡事总有例外。
the writer comes to discern things in his material which were not consciously in his mind when he began.
会领悟到素材中很多东西是他刚动笔时所未意识到的。