当我在大学是时候，我震惊于那么多人对其职业的关注程度。而这些关注通常以非常狭窄的路径呈现。
When I was at university, it shocked me how focused so many people were about their careers, in ways that often seemed pretty narrow.
通常雷达采用大型天线以产生狭窄波束，其方法基本上与探照灯反射镜相似。
Radar sets generally employ large antennas to produce narrow beams in much the same way as a search-light reflector.
最近出现的食道狭窄通常都比较严重。
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