Endorphin
[化] 内啡肽
🗣️ 情景例句
Well, for one thing, he's my sister's boyfriend. Ann talks about Jack all the time.
首先，他是我妹妹的男朋友。安整天就是杰克长杰克短的。
I've come to say goodbye.
我是来告别的。
We can read of things that happened 5,000 years ago in the Near East,
我们从书籍中可读到5，000 年前近东发生的事情，