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两人相对而行，狗在两人之间来回跑，直到两人相遇，狗跑了多少
五六年级数学557/688
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![9秒记住一个单词｜梅花鹿sika deer 读音[ˈsiːkə dɪə(r)] 例句：The sika deer is a beautiful and graceful animal.（梅花鹿是一种美丽而优雅的动物。） #零基础英语 #趣味英语 #英语单词 #生活英语 #巧记单词](http://p3-sign.bdxiguaimg.com/tos-cn-p-0015/oUIYBCaDOCpkouUFE136EAInBBAfff8Ag7QkTC~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=2025011107540447923388D81406C06516&requestFrom=101&x-expires=1768089245&x-signature=%2Fr7qUAPkuFfLhQtkuuE1G%2Biw2K0%3D)
