Mastoid cavity
[医] 乳突腔
🧩 词语组成解析
a. 乳头状的\\nn. 乳突
🗣️ 情景例句
I'll see you all at dinnertime.
吃晚饭时见面了。
A man who has friend must show himself friendly.
与朋友交，必须友好相处。
Only one or two people have objected that the students will drive too fast!
只有一两个人提出反对意见，说学生们会把车开得太快！