He is expected to warn ministers in polar regions that the arctic ice cap may totally disappear in as little as five years if nothing is done to curb greenhouse emissions.
他会警告负责极区的部长，如果再不下措施抑制温室气体的排放，则北极的冰帽将在五年内完全消失。
In the financial market, information often appears asymmetric. Thus the efficiency of present finance transactions will be lost and as a result, the transactions will totally disappear.
金融市场上信息常常是非对称的，这使现存的金融交易效率发生损失，直至交易消失。
The big question now is when the ice will disappear totally each summer. There will be an answer in 2010.
现在重要的问题是，何时北极在夏季再无冰存在。
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