Cissoid
凹边的,蔓叶线的
🗣️ 情景例句
Keep quiet about it if you know what's good for you.
什么也别说，免得你自个儿添不自在。
May I ask you for a dance?
可以请你跳支舞吗？
The response to this competition was tremendous.
这次竞赛在听众中引起极其热烈的反响。