Hydroxytryptamine
n. 含于血液中的复合胺
🗣️ 情景例句
Her name's Gemma,
它叫做Gemma，
Men too seldom see their own faults.
人们很少能看到自己的过错。
Yes, it is.It's very urgent.I feel awful. I have a terrible toothache.
是的，很急。我难受极了，牙痛得要命。