Heterodonta
异齿目
🗣️ 情景例句
Don't mention it.
没事儿。
One cannot put back the clock.
光阴一去不复返。
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。