Serrations
(serration 的复数) n. 锯齿状, 锯齿边\\n[医] 锯齿形, 锯齿构造
🗣️ 情景例句
Sorry, Robbie. Sorry to be late this morning,
对不起， Robbie， 对不起 ，今天早上迟了点，
I'm going to wear my blue suit.Is that all right?
我想穿我蓝色的西装，那合适吗？
She has been to school.
她上学去了。