Rugosimeter
糙度计
🗣️ 情景例句
No, I'm not very good at it.
不 ，我网球不行。
Though the fox run, the chicken hath wings.
狐狸虽会跑，小鸡有翅膀。
I have just received a letter from my old school, informing me that my former headmaster,
我刚刚收到母校的一封信，通知我说以前的校长