Van Hollen says the Energy Department estimates that drilling today in the Alaskan wildlife refuge would not deliver any petroleum to U.S. pumps for ten years.

• 凡.；霍伦说，能源部的科学家估计，如果现在开始在阿拉斯加野生动物保护区开采石油，10年以后才能给美国带来汽油。