VOA常速英語：因日食而引發(fā)的觀看鏡的需求以及焦慮

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On Monday, Aug. 21, for the first time in 99 years, a solar eclipse will march across the United States from west coast to east coast, and excitement is building across the nation. Experts advise that people wear specific, protective eyewear to view the eclipse, but as VOA's Kane Farabaugh reports, finding the special lenses is becoming a difficult task.