Smokometer
烟密度计, 烟尘计
🗣️ 情景例句
What basic principles do you apply to your life?
你在生活中最基本原则是什么？
I often go to bad at night.
我常常在晚上睡觉。
The entrance to the cave is on a plateau in the Dauphine Alps.
此洞的洞口在丹芬阿尔卑斯山的高原上，