Serration
n. 锯齿状, 锯齿边\\n[医] 锯齿形, 锯齿构造
📖 牛津释义
serration
n
1 [U] being serrated 锯齿状.
2 C] notch on a serrated edge 锯齿形边缘的凹口.
🗣️ 情景例句
I think you ought to
我觉得，你们应该
Don't try judge young people by their appearance.
不要从外表去判断年轻人。
Jim
吉姆