Smokemeter
n. (用以测定烟雾的浓度或成分的)烟度计
🗣️ 情景例句
Better than that.
比那种事更值得高兴。
Respect yourself, or no one else will respect you.
君须自敬，人乃敬之。
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。