Polygons
多边形
🗣️ 情景例句
Have you ever been to Far East Department Store?
你曾去过远东百货公司吗？
Do you know when he will be back?
你知道他什么时候会回来？
One man was told to fix up an air-line to provide compressed air for the machines they were using.
有个工人被派去安装"供气管"，给他们正在使用的机器提供压缩空气。