Mfp
平均自由路程
🗣️ 情景例句
I want to take a few days off just for relaxation.
我想请几天假放松放松。
I think dimes and quarters will do.
我看1角和2角5分的硬币就可以了。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。