Mastoid cells
[医] 乳突小房
🧩 词语组成解析
a. 乳头状的\\nn. 乳突
n. 细胞；牢房；小屋；单元格（cell的复数）
🗣️ 情景例句
you've been writing for the school paper.
你为校刊写文章。
Death frees us from ills.
死亡使我们解脱不幸。
Yes, It was a real pity!
可不是，太可惜了。