Knoop
努普显微压痕硬度试验仪
🗣️ 情景例句
I understand, Richard.
我懂了 ，Richard。
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
This was more than we could bear, so we decided to spend our last day exploring the countryside.
人多得使我们难以忍受，于是我们决定利用最后一天去乡间一游。