Melatonin
[化] 褪黑激素; N-乙酰-5-甲氧基色胺
🗣️ 情景例句
Well ... I feel fine about it. Why shouldn't I?
嗯……我觉得不错。为什么不呢？
If you cannot have the best, make the best of what you have.
如果你不能有最好的，你就充分利用你现有的吧。
Where does Li Lei sit?
李磊坐在哪里？