Lapis dentalis
[医] 牙垢, 牙石
🧩 词语组成解析
[医] 石
🗣️ 情景例句
My pleasure, Doctor.
非常荣幸，医生。
A man may lead a horse to the water, but he cannot make him drink.
牵马到河易，强马饮水难。
Economy is one powerful motive for camping, since after the initial outlay upon equipment,
图省钱是露营的一个主要动机，因为除了开始时购置或是租借一套露营装备外，