Lapis dentalis
[医] 牙垢, 牙石
🧩 词语组成解析
[医] 石
🗣️ 情景例句
Where does she live?
她住在哪？
Oh, really? I'm moving there too.
真的？我也会搬到那儿去。
He is heavily insured against death.
他给自己投了巨额的人身保险。