Hydroxytryptamine
n. 含于血液中的复合胺
🗣️ 情景例句
I want to take a flight to New York tomorrow.
我想明天坐飞机到纽约。
Death when it comes will have no denial.
死亡来临时，无可抗拒之。
Collecting as a serous hobby is quite different and has many advantages.
作为一种严肃的业余爱好的收藏活动完全是另外一回事，它具有许多益处。