Predentin
前期牙(本)质, 原牙质
🗣️ 情景例句
Go ahead.
说吧！
What do you think of the proposal?
你的看法如何？
Goodness me! Six zeros! I've never seen anything like this before.
天啊！带六个零的大钞！我还从来没有见过这样大的钞票。