Densometer
n. (纸张)透气度测定仪, 密度计
🗣️ 情景例句
Well, first, you have to turn your hat around like this.
首先 ，你得把你的帽子转一下 ，像这样。
I have lovely friends.
我有可爱的朋友。
The doctor began to operate on the boy.
医生开始给那个男孩动手术。