使用 Polygon[ ] 指令製作墊圈的上下兩面，然後將所有的面與描繪輪廓的圓變成自定工具：
Washer[ <point>, <point>, <radius 1> , <radius 2> ]
- Target Group (Age)
- 14 – 18
- Language
- Chinese Traditional / 繁體中文
Error
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