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
That's reassuring.
真令人安心。
Deeds are fruits,words are but leaves.
行动是果实，言语只是叶子。
Same to you.
彼此彼此。