adv在戶外(露天)(in the open air;out of doors)：We spent most of our holiday～.我們假期的大多數(shù)時間是在戶外度過的。Don't go～if it is raining.如果下雨就不要到外面去。〖反〗 indoors;
n 室(戶)外;露天地(area outside a house or building in the open air)：come in from the～從外面進來;the wildlife of the great～廣闊原野的野生生物;He enjoys the great～too much.他酷愛野外的環(huán)境。
←outdoor adj