Odontolithiasis
[医] 牙垢症
🗣️ 情景例句
When did you come here?
是什么时候来这儿的？
Do you like traveling?
你喜欢郊游吗？
It also provides--and some student sociologist might care to base his thesis upon the phenomenon--an escape of another kind.
学社会学的大学生来露营是另一种形式的摆脱现实，他们的目的很可能是根据观察到的露营现象去写论文。