1、 The trend in sports, though, may be obscuring an unrecognized reality: Americans have generally stopped growing.
然而，体育运动的趋势可能正在模糊一个未被意识到的事实：美国人普遍已经停止了生长。
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2、 Yet its report may well set back reform by obscuring the depth and breadth of the challenge that Congress asked it to illuminate.
然而它发布的报告很可能会阻碍改革的步伐，因为国会要求它阐明挑战的深度和广度，而这一点却并没有被阐述清楚。
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