Lithoxyle
石化木
🗣️ 情景例句
It's an album of pictures of the United States:
是关于美国的
Can I cancel this ticket?
我可以取消这张票吗？
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。