n. an optical device for viewing photographic transparencies
n. 观察者, 看电视者, 视察员, 观察器
[化] 指示器
1. The viewer enjoyed the documentary about wildlife.
观众喜欢那部关于野生动物的纪录片。
2. Many viewers tuned in to watch the final episode of the series.
很多观众收看了该系列的最终一集。
3. The art exhibition attracted a large number of viewers.
这场艺术展吸引了大量观众。