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

而科学家们表示，大部分尚用的嗅觉即将会技术进步所激发。

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

美国地质局表示，世界上百分的开发的石油和天然气矿藏都掩盖在北极冰层下。