Pyroparaffine
焦石蜡, 重质蜡
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
There have been a lot of changes here in the last 20 years.
在这20年里这里有很多变化。
no more than one or twofeet thick.
气垫只有一两英尺厚。