ozone /ˈəuzəun/ n.［u］1. 臭氧：ozone layer臭氧层：The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays.环绕地球的臭氧层保护着我们的皮肤免受紫外线的伤害。2. 清新空气：Just breathe in the ozone on the sea.吸吸海上的新鲜空气吧。