Hydroxytryptamine
n. 含于血液中的复合胺
🗣️ 情景例句
It always takes time to get used to a new place.
适应一个新地方总是需要一段时间。
Believe no tales from the enemy.
切莫轻信敌人。
I was at the greengrocer's.
我在蔬菜水果店里。