out of doors

Từ điển Oxford Advanced Learner 8th

out of ˈdoors idiom
not inside a building
•You should spend more time out of doors in the fresh air.
Main entry: ↑door_idiom

• Từ đồng nghĩa / Synonyms:
  outside, outdoors, alfresco
• Từ trái nghĩa / Antonyms:
  inside, indoors