Predentin
前期牙(本)质, 原牙质
🗣️ 情景例句
Not at all.
不客气。
What was that?
你说什么来着？
The Karen had been sailing in a convoy to Russia when she was torpedoed by an enemy submarine.
“卡伦”号当年在为其他船只护航驶往俄国的途中突然遭到敌方潜水艇鱼雷的袭击。