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's gone for the summer.
他夏天度假去了。
Beauty is potent; but money is omnipotent.
美丽是有力量的，但金钱更有权威。
Is there a ball under the table?
桌子上有一只球吗？