Cementodentinary
[医] 牙骨牙质的
🗣️ 情景例句
I've been thinking about it for weeks now.
为这事我想了几个星期。
Excuse me I couldn't help you.
对不起我不能帮助你。
It's about the universe. The speaker's supposed to be excellent.
是关于宇宙的。演讲人应该是一流的吧。