On the other hand, ice limits what you actually can do.

年夜另一方面讲，冰也有局限性，限制你的作为。

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Countries that manage Antarctica are calling for limits on the number of tourist ships, for fortified hulls that can withstand sea ice and for a ban on the use of so-called heavy oils.

各个国家对于南极洲要求对于游览船只的限制采取了措施，一个是对抗海冰的船体外壳加固，另一个是禁止重油船。

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The previously off-limits sea ice data has a resolution of one meter.

先前禁入的海冰数据具有一米的分辨率。

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The Federation Aviation Authority limits how much dry ice can be on a plane because it releases carbon dioxide (too much can harm passengers and crew).

WSJ: How Would Santa Ship Chocolate Pears and Live Lobsters

Chile still has an unsettled border issue with Argentina, involving the limits of the southern Patagonian ice field.

BBC: Chile navy investigates 'xenophobia' in video

Speed skaters test human-performance limits--and smash records--with better training, better skates, faster ice.

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