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Expression
光污染guāng wū rǎn
light pollution(undesirable illumination)
中国科学院一位专家说,尽管建筑物的玻璃幕墙造成的光污染已经开始引起人们注意,但其他类型的光污染却仍然鲜为人知。
An expert at the Chinese Academy of Sciences said that the light pollution caused by glass walls of buildings have already caught people's attention, but other kinds of light pollution are little known.

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