Thrombotonin
5-羟色胺
🗣️ 情景例句
And your friends are planning to go to Columbia?
而且你的朋友们也准备上Columbia大学 ，对吗？
Inside the packet is some money.
小红包里装着些钱。
Is that true? said Lucy. She was surprised. Is it a real king's hat?
“是真的吗？”露西问。她感到惊奇。“那真的是国王的帽子？”