Melatonin
[化] 褪黑激素; N-乙酰-5-甲氧基色胺
🗣️ 情景例句
What are you trying to tell me?
你想告诉我什么？
They don't know when the wedding will be.
他们不知道婚礼将是什么时候。
Just ahead of us there was a huge fissure.
离我们不远处，出现一个大裂缝。