Dentinum
[医] 牙[本]质
🗣️ 情景例句
Yes. It's the anniversary of one of our important revolutionary movements.
是的。它是中国一个重大革命运动的纪念日。
To break the routine.
调剂一下。
Please give us a short talk. Nothing difficult!
请你给我们作一次简短的讲话。这对你并不困难！