Melatonin
[化] 褪黑激素; N-乙酰-5-甲氧基色胺
🗣️ 情景例句
What subject did you major in university?
你在大学主修的科目是什么？
God sends fortune to fools.
蠢人有蠢福。
It's nothing. Don't worry. You'll be OK, said Li Lei. But you'd better not talk.
“这算不了什么。不要着急。你会好的”，李垒说，“但你最好不要说话”。