Odontolithiasis
[医] 牙垢症
🗣️ 情景例句
I was when I first came to the United States.
当我刚到美国来的时候是感到有点紧张。
That's possible.
那是可能的。
'The fire broke out in the basement.I went down immediately,of course,
“地下室突然着火，我当然马上下去了。