Our rooftop is 200 units (now we'll scale that to feet) - so it's 20 feet across and across, making a perfect square.
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making a perfect square
做一个完美的正方形
以上为机器翻译结果，长、整句建议使用 人工翻译 。
应用推荐
模块上移
模块下移
不移动