Crusta fibrosa
[医] 牙骨质
🧩 词语组成解析
甲壳
🗣️ 情景例句
I'm glad you like it, Susan.
我很高兴你喜欢它， Susan。
I would like to repair her washing machine.
我要去修理她的洗衣机。
May I have your attention please?
请大家注意一下。