Hydroxytryptamine
n. 含于血液中的复合胺
🗣️ 情景例句
My younger brother, Robbie.
这是我弟弟Robbie
The first step to virtue is to abstrain from vice.
不作恶是走向美德的第一步。
They describe how each process goes on to the next.
表述着每道工艺间的衔接情况。