Tribometry
摩擦力测量术
🗣️ 情景例句
What would you like to read to them?
你想读些什么给他们听？
The story Sam told wasn't very funny.
萨姆的故事一点意思也沒有。
So far, they have been unlucky in their search for gold and have no money at all.
到那时为止，他们寻找金子一直碰不上好运，而且他们身上一点钱也没有了。