Thrombotonin
5-羟色胺
🗣️ 情景例句
I need a haircur, what would you recommend?
我要剪个发，你有什么好建议？
I was moved. = I was touched.
我很受感动。
As it is only six feet across, it is barely noticeable.
仅6英尺宽，很难被发现。