皇家岛被苏必利尔湖的深蓝色湖水所包围，该湖是世界上面积最大的淡水湖。
Isle Royale is surrounded by the deep blue waters of lake Superior, the largest freshwater lake on Earth by area.
下一个目的地是苏必利尔湖，世界上最大的淡水湖，也是五大湖中最深的湖。
Our destination now is Superior, the largest freshwater lake in the world, also the deepest of the Lakes.
苏必利尔湖是世界上最大的淡水湖。
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