Intrabony
骨内的
🗣️ 情景例句
It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分，12岁以下的小孩30分。
I go downstairs and have my breakfast.
我下楼吃早饭。
Our policy is not to grant exclusivity.
我们的方针是不授与专卖权。