Piperidone
哌啶酮
🗣️ 情景例句
Sorry, but she is out for lunch right now.
抱歉，她现在出去吃午饭了。
Half the world knows not how the other half lives.
富人不知穷人苦。
I'd love to. What kind of football, American or soccer?
我很乐意去！什么样的足球赛，美式的还是英式的？