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
Did you make any long distance calls this morning, or did you sign for your breakfast?
您今天早上没有打长途电话或吃早餐记账？
The restaurant doesn't open until seven forty-five.
饭馆要到七点四十五分才开门。
Why don't you buy a radio? Then you can listen to China Radio International or BBC English programmes on the radio.
你为什么不买台收音机呢？那样你就能听中国国际广播电台或者BBC英语广播节目了。