一只北极狐的重量是多少？
北极是大小食肉动物的家。这只北极狐已经追随一只北极熊几天了，希望能获得一些残羹剩饭。
The Arctic is home to predators big and small. This Arctic fox has been following a polar bear for days in hopes of leftovers from a kill.
北极是大小食肉动物的家。这只北极狐已经追随一只北极熊几天了，希望能获得一些残羹剩饭。
The Arctic is home to predators big and small. This Arctic fox has been following a polar bear for days in hopes of leftovers from a kill.
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