Endorphin
[化] 内啡肽
🗣️ 情景例句
Hello, it's good to see you again.
很高兴又见到你。
This country is localed on the continent of Africa.
这个国家位于非洲大陆。
I was very tired when I arrived home. I'd been working hard all day.
我到家时非常累。我一整天都在玩命地干！