Mechanical friction
[化] 机械摩擦
🧩 词语组成解析
🗣️ 情景例句
Good afternoon, Mrs. Green. I'd like you to meet my girlfriend, Sally.
格林太太，下午好。我想让你认识一下我的女朋友萨里。
Beggars must (should) be no choosers.
行乞的哪能挑肥拣瘦；饥不择食。
He told me that he would give up his job.
他告诉我他要辞职。