Sphenoid cells
[医] 蝶窦
🧩 词语组成解析
a. 楔形的\\nn. 半面晶形, 蝶骨
n. 细胞；牢房；小屋；单元格（cell的复数）
🗣️ 情景例句
There is not a shadow of a doubt that they did it.
毫无疑问，是他们干的。
What day is tomorrow?
明天是星期几？
Normal people tend to forget this process unless and until they are reminded of it.
衰老的过程，不经提起，正常人容易忘记；一经提醒，才会记起。