at that time sea otters' population fell to the point that they became extinct in many areas.4546

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atthattimeseaotters''populationfelltothepointthattheybecameextinctinmanyareas.4546atthattimeseaotters

at that time sea otters' population fell to the point that they became extinct in many areas.4546
at that time sea otters' population fell to the point that they became extinct in many areas.4546

at that time sea otters' population fell to the point that they became extinct in many areas.4546
在那一时期,海獭的数量在许多海域降至他们频临灭绝的最低点.