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 always eat three square meals a day.
我总是每天三顿饭都好好吃。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
What do you desire me to do?
你想要我做什么？