In 2007, the Northwest Passage was ice-free for the first time in living memory. Boats of all sizes – including cruise ships – have sailed through easily in summers since then.
2007年，人类自有记忆以来西北航道第一次摆脱了海冰的困扰。包括游轮在内的大小船只从那时起可以在夏天畅通无阻。