Tribometry
摩擦力测量术
🗣️ 情景例句
I saw a real shark.
我看到一条真正的鲨鱼。
Never show the bottom of your purse or your mind.
钱包不露底，思想需保留。
He did not look up from his desk when I entered.
我进去的时候，他连头也没抬。