沃德姆斯重申了采取紧急措施的重要性。
剑桥科学家彼得·沃德姆斯自1971年以来一直在测量和监测北极，他说这种减少是不可逆转的。
Cambridge scientist Peter Wadhams, who's been measuring and monitoring the Arctic since 1971, says the decline is irreversible.
为什么已故哲学家理查德·沃尔海姆要花四个小时观看一幅画？
Why did the late philosopher Richard Wollheim spend four hours before a picture?
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