Scientists say the sense of smell, until now largely unexploited, is about to be stimulated by the march of technology.

而科学家们示，大部分尚未利用的嗅觉即将术进步所激发。

The US Geological Survey says 22 percent of the world's unexploited oil and gas deposits are hidden under the Arctic ice.

美国地示，世界上百分之二十二的未开发的石油和天然气矿藏都掩盖在北极冰层之下。