Proctodone
后肠激素
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
We really appreciate your being our partners.
我们真诚地感谢你们成为我们的客户。
Good morning, class.
同学们，早上好。