Conca
康卡构造, 贝壳状塌陷（构造）； 火口区同心状凹陷
🗣️ 情景例句
and wrote to his wife Martha.
给他妻子Martha写信。
Will it be convenient for you to explain your plans to him?
你向他解释计划将是方便的吗？
He has a nice sum of money put away.
他存了一大笔钱。