椭圆形的面积公式:please help translate

来源：百度文库 编辑：神马品牌网 时间：2024/05/07 07:36:06
For the Breland's, cats stalked their food slots, pigs rooted their poker chips, while raccoons tried to "wash" them.

在breland ,猫追踪食物的踪迹,猪拱出食物的碎屑,然而浣熊却尽量的摸掉这些痕迹

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