Dilator
n. 详述者, 扩张器, 扩张肌\\n[医] 扩张器, 扩张肌, 开大肌
🗣️ 情景例句
I work on the school magazine.
我在校杂志社工作。
An empty bag cannot stand upright.
空袋不能直立。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。