Conca
康卡构造, 贝壳状塌陷（构造）； 火口区同心状凹陷
🗣️ 情景例句
We aren't going, for the simple reason that we can't afford it.
我们不去，原因很简单，我们负担不起。
What's the point of feeling blue?
有什么好悲伤的？
Lucy ran faster than Meimei.
露茜比梅梅跑得更快。