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indoor

adjective
 
🔊/ˈɪndɔː(r)/
🔊/ˈɪndɔːr/
[only before noun]
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  1.  
     located, done or used inside a building（在）室内的；在户内进行的；在室内用的
    • an indoor swimming pool室内游泳池
    • indoor games室内游戏
    • Poor indoor air quality can result in increased risk of asthma and allergies.室内空气质量差会导致哮喘和过敏的风险增加。
    opposite outdoorTopics Houses and homesb1, Buildingsb1
    Oxford Collocations DictionaryIndoor is used with these nouns:
    • arena
    • athletics
    • court
    • …
    See full entry
  2. relating to sports played indoors
    • the world indoor 200 metres champion室内 200 米赛世界冠军
    3. Word Originearly 18th cent. (superseding earlier within-door): from in (as a preposition) + door. Compare with indoors.