Conca
康卡构造, 贝壳状塌陷（构造）； 火口区同心状凹陷
🗣️ 情景例句
I guess you're right.
说的也对。
Please don't blame yourself.
请不要责怪你自己。
The Cutty Sark rolled from side to side and it became impossible to steer her.
船身左右摇晃，无法操纵。