Thrombotonin
5-羟色胺
🗣️ 情景例句
My visa is multi-entry; it allows me to exit the country and then re-enter, as ofter as I like.
我的签证是往返签证，我可以随便进出这个国家。
I'm telling the truth. I'm not lying.
我说真的，不骗你。
I'm hoping to get to your showroom.
我打算到你们的展示中心看看，