existing, happening, done, or used outside
fond of outdoor sports
"badminton and other outdoor games"
"a beautiful outdoor setting for the wedding"
"outdoor education is the area of teacher training concerned with training for outdoor activities"
He loved fishing and any kind of outdoor life.
出自： P. Campbell
误 In hot summer they like to sleep outdoor.
正 In hot summer they like to sleep outdoors.
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”。