Crusta fibrosa
[医] 牙骨质
🧩 词语组成解析
甲壳
🗣️ 情景例句
If you cheat in a test, you've really only cheating yourself.
如果你在测验中作弊的话，你欺骗的只有你自己。
Please don't snack; you will ruin your dinner.
请别吃点心了，你会对正餐失去胃口的。
Sure! What's your name, please?
当然可以。你叫什么名字 ？