Predentin
前期牙(本)质, 原牙质
🗣️ 情景例句
You'll need to hurry up, or you'll miss the train.
你得快点，否则赶不上火车。
Love is sweet in the beginning but sour in the ending.
爱情始甜而终苦。
I must definitely get that fellow posted. '
我一定要把那个家伙打发走。”