Melatonin
[化] 褪黑激素; N-乙酰-5-甲氧基色胺
🗣️ 情景例句
That's what I came to ask you to do, Malcolm.
这正是我来请你做的， Malcolm。
Would you be so kind as to open this window for me? It's stuck.
你能为我打开这扇窗户吗？ 它粘住了。
It looks very nice.
看起来很漂亮。