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
You sound like something's bothering you, Susan.
听起来好像你有什么心事， Susan？
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
A born teacher, she thought she could turn a deaf-blind person into a useful human being.
她是一个天的教师，认为自己可以把一个聋盲人变成一个有用的人。