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。
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。
3. Issues have a way of obscuring real life. 问题有种使真实的生活变得模糊的方法。
4. However, the radar returns are often cluttered by interference, obscuring the signal. 然而，这种雷达的回波经常受到干扰而产生杂波，使信号模糊不清。
5. If over-designed, they can be more artistic than motivational, obscuring the sales message. 如果设计过度，它们会更富艺术性而非激发性，模糊了销售信息。
