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
They ask questions like Do you have any brothers or sisters?.
他们常问一些像“你有兄弟姐妹吗？”。
The message is often a famous quotation, religious principle or short poem.
格言经常是一句著名的名言、宗教教条或短诗。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。