Macker
炭质页岩
🗣️ 情景例句
And I am a hard worker when I have something challenging to do.
并且在遇到挑战性的工作时，我是个很努力的人。
When did you find this book?
你什么时候找到这本书的？
Thank you. Lucy and Lily, come here, please.
谢谢你，露茜和莉莉，请过来吧！