Thrombocytin
血小板素, 血清素, 5-羟色胺
🗣️ 情景例句
Your buildings are very large, aren't they?
你们的厂房很大，对吗？
There is no royal road to learning.
治学无坦途。
You can enlarge your knowledge and learn some English at the same time.
你可以扩大你的知识面，同时又学习了英语。