viewer
英 ['vjuːə]
美['vjuɚ]
	    - n. 观察者;观看者;电视观众;[仪] 指示器
 
英英释意
- 1. a close observer; someone who looks at something (such as an exhibition of some kind);
 - "the spectators applauded the performance"
 - "television viewers"
 - "sky watchers discovered a new star"
 
- 2. an optical device for viewing photographic transparencies
 
