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
He has a big sales office in Los Angeles,
他在Los Angeles有一个大的销售办事处，
Continual failure drove him to suicide.
不断的失败逼得他自杀。
She'll come if she can.
如果可能的话，她会来的。