Ethydene
[医] 亚乙基, 乙叉
🗣️ 情景例句
I'd like an advance copy of the book, though,
但我想要一本新书的试印本
Do you think you'll be able to go to sleep right away?
你认为你将马上入睡吗？
You're very professional.
你非常专业。