1. A 户外的，露天的　 existing, happening, done, or used outside
2. A 喜欢户外活动的　 fond of outdoor sports

　～ activities　室外活动
　～ clothing　户外穿的衣服
　～ concert　露天音乐会
　～ exercises　户外运动
　～ life　野外生活
　～ sports　户外运动
　～ swimming pool　露天游泳池
　～ theatre　露天剧场

　Having outdoor activities in winter is a good way to prevent diseases.　冬天在户外活动是预防疾病的好方法。
　The children like to play outdoor games.　孩子们喜欢户外游戏。
　He used to lead an outdoor life.　他经常出去做野外生活。
　You need more outdoor exercise.　你需要多做户外运动。
　It was outdoor work, and fairly healthy.　那是野外工作，对健康相当有益。
　He is not really an outdoor type.　他算不上是喜爱户外活动的人。

　在炎热的夏季，他们喜欢睡在屋外。
　［误］ In hot summer they like to sleep outdoor.
　［正］ In hot summer they like to sleep outdoors.
　我喜欢户外运动。
　［误］ I like outdoors sports.
　［正］ I like outdoor sports.
　［析］ outdoor是形容词，意思是“户外的”， outdoors是副词，意思是“在野外”“在户外”。

　［同义词］ open-air, out-of-door, outside
　［反义词］ indoor