Odontolith
[医] 牙垢, 牙积石
🗣️ 情景例句
Oh, I'm fine.
噢， 我很好。
There is but one step from the sublime to the ridiculous.
可敬与可笑之间只有一步之差。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，