Intrados
n. 拱腹(线), 拱之下面, 内弧面
🗣️ 情景例句
What am I supposed to do?
我该做什么？，
Is that a car?
那是一辆小汽车吗？
She didn't visit her step-mother much, though I believe that they used to speak on the phone from time to time.
她不常看望她的继母，虽然，我相信她们过去时不进在电话里聊一聊。