RIVERDOLPHINRUNNINGO的精選

問題詳情：RIVERDOLPHINRUNNINGOUTOFTIMETheYangtzedolphinistheonlykindofdolphinthatlivesinfreshwaterallitslife.ScientistssaythatthefinlessfreshwaterdolphinthathaslivedintheYangtzeRiverforover20millionyear...