Conca
康卡构造, 贝壳状塌陷（构造）； 火口区同心状凹陷
🗣️ 情景例句
That's load off my mind.
这一来我心里轻松了。
We have a lot of invitation cards, but they are all for the same date.
我们接到了许多请帖，但是上面的日期却全都是同一天。
The only person I know who has a skeleton in the cupboard is George Carlton,
我所认识的唯一的在柜中藏骷嵝的人便是乔治。卡尔顿，