Odontoperiosteum
[医] 牙周膜
🗣️ 情景例句
Six words.
六个字。
I have a lot of trouble with pronunciation.
我有发音的很多毛病。
wind, earth movements or tremors, and the gravitational pull of the moon and the sun.
风、地球的运动或震颤和月亮、太阳的引力。