Serotonin
n. 血清素\\n[化] 5-羟色胺
🗣️ 情景例句
What are you talking about?
你在说什么呀？
Mrs. Hughs, this is Peter Brown.
休斯太太，这是彼得i布郎。
There are some armchairs in the room.
客厅里有几把扶手椅。