加拿大卡尔加里大学（Calgary University）的极地专家罗布·休伯特（RobHuebert）认为，“这本就是特意限制的”。
“It has been purposely hobbled, ” says Rob Huebert, a polar specialist at Canada's Calgary University.
加拿大卡尔加里大学（Calgary University）的极地专家罗布·休伯特（RobHuebert）认为，“这本就是特意限制的”。
“It has been purposely hobbled, ” says Rob Huebert, a polar specialist at Canada's Calgary University.
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