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来源:雅诚德英语网
Indeed, most analysts believe that some kind of environmental degradation underlies the demise of many extinct salmon populations.
事实上,大多数分析家认为某种环境退化是许多已灭绝鲑鱼种群消亡的根源。
Indeed, most analysts believe that some kind of environmental degradation underlies the demise of many extinct salmon populations.
事实上,大多数分析家认为某种环境退化是许多已灭绝鲑鱼种群消亡的根源。