Tribometry
摩擦力测量术
🗣️ 情景例句
Well, forty-seven, to be exact.
准确点说， 四十七年。
How often did I tell you not to speak so loud?
我告诉你多少次不要讲话这么大声?
Here is a cheque for 4,725,466.
这是一张4，725，466美元的支票。