这座宝塔有个七边形的底座。The pagoda has a base of heptagon.可通过拖动任一选择手柄来自定义的七边形.Seven - sided shape that can be customized by dragging any selection handle....

“七边形”的拼音为：qī biān xíng...

“七边形”的英语可以翻译为：[数] heptagon，septilateral，septangle ...