美国国家航空和宇宙航行局在很大程度否定了一份俄国的报告，该报告称一个比两个足球场还大的行星可能于2036年撞击地球。
NASA has largely dismissed a Russian report that an asteroid larger than two football fields could hit Earth by 2036.
所以现在我们将孩子放在简易婴儿车中，向Daingerfield岛走去，那里汇聚了许多码头和足球场，并且那里有Reagan国家机场，飞机起飞时有很好的视角。
So we strapped the kids into the stroller and walked over to Daingerfield Island, home of boat docks, soccer fields, and a great view of planes taking off at Reagan National Airport.
美国国家点火装置（简称NIF）耗资35亿美元，建在一个十层楼高的建筑里，占地面积有三个足球场那么大。 它将利用激光把氢同位素靶丸转化为热核能量。
The $3.5bn National Ignition Facility (NIF) sits in a 10-storey building covering three football fields and will harness the power of lasers to turn tiny pellets of hydrogen into thermonuclear energy.
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