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

学家们表示，大部分尚未被利用的嗅觉即将会被技术进步所激发。

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，世界上百分之二十二的未开发的石油和矿藏都掩盖在北极冰层之下。