Serotonin
n. 血清素\\n[化] 5-羟色胺
🗣️ 情景例句
She suffered terribly when her son was killed.
儿子被杀，她痛苦至极。
Do you enjoy watching your babies grow into people?
目睹子女长大成人是一件快乐的事情吧？
What do you think of this one?
您觉得这个怎么样子