noun公开,为人所知;在户外,露天;在野外
adjective开着的;开阔的,空旷的;敞开的,露天的;裸露的;开放,营业;公开;坦诚的,直率的;未决定,尚在考虑;在户外,在露天
verb开,打开;开启;开始,启动;以…开头;开门,开放;为…揭幕
nounnot hidden or secret
nounoutside; in the countryside
adjectivenot closed or blocked
adjectiveaway from towns and people; with not many buildings or trees
adjectivewith no cover or roof on
adjectiveable to be used or done; available
adjectivenot hiding your thoughts and feelings
adjectivenot yet decided
adjectiveoutside
verbto move, or to move something, so that something is not closed or covered
verbto start something; to start
verbto make it possible for people to enter a place