Smokometer
烟密度计, 烟尘计
🗣️ 情景例句
And this gentleman is my grandfather, Malcolm Stewart.
这位绅士是我祖父Malcolm Stewart。
To scratch for fleas
因为跳蚤而抓痒
what would civilization be like without its benefits?
如果不受其惠，文明将会是个什么样子呢？