1·The United States National Resource Defense Council has found that DDT was the most popular of a long list of dangerous chemicals in use.
美国国家资源保护委员会发现 DDT 是一系列使用中的危险化学品里最受欢迎的一种。
2·The United States National Institutes of Health paid for the study.
美国国立卫生研究院支付了研究。
3·Well, a committee of scientists appointed by the United States National Research Council had the same thought.
一个由美国国家研究委员会任命的科学家小组也有相同的想法。
4·Experts at the United States National Institutes of Health suggest some ways to treat excessive earwax yourself.
美国国家健康协会的专家提出了你自己清理多余耳垢的一些方法。
5·United States National Guard soldiers deliver humanitarian aid to an Afghan village with the help of the local police.
美国国民警卫队，在阿富汗警察协助下，运送人道救援物资到阿富汗的村落。
6·Puerto Rico's 28,000-acre El Yunque National forest is the only tropical rain forest in the United States National forest System.
波多黎各的28,000英亩的云雀国家森林是美国国家森林体系中唯一的热带雨林。
7·Experts at the United States National Institutes of Health suggest some ways to treat excessive earwax yourself. The experts at N.
美国国家健康研究院的专家们给出了一些让你自己对付多余耳屎的建议性方法。
8·In a surprise finish here, Ladwig and Evora - the runners-up at last month's United States national championships - finished 10th over all with 171.92 points.
在出人意料的总决赛中，拉德维格和伊弗娜-上月美国国家花样滑冰锦标赛的压军-以171.92总分排名第十。
9·Mark Schubert, director of the United States national swim team, has a contract with Speedo, whose suits have helped swimmers set numerous world records this year.
马克·舒伯特，美国国家游泳队主管，和今年帮很多游泳选手完成了数项新的世界纪录的游泳装备商speedo有合作合同。
10·According to the United States National Institute for health, 55 percent of Americans are so overweight that their obesity is a serious threat to their health.
根据美国国家健康协会的调查表明，55%的美国人都超重，他们的体重给其身体健康都造成了严重的威胁。