1. The ozonous air in the ozone layer protects us from harmful UV radiation.
(臭氧层中的臭氧空气保护我们免受有害的紫外线辐射。)
2. The strong smell in the room was due to the ozonous cleaning chemicals used.
(房间里强烈的气味是由于使用了含臭氧的清洁剂。)
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