北极熊，在欧洲的许多语言中被称作“冰熊”，依靠它们四周的冰而生存。
Called "ice bears' in many European languages, polar bears depend on the ice that surrounds them for their survival."
北极熊，在欧洲的许多语言中被称作“冰熊”，依靠它们四周的冰而生存。
Called "ice bears' in many European languages, polar bears depend on the ice that surrounds them for their survival."
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