然而，室内锻炼，决没有在有纯而新鲜的空气的室外有益。
户外
out of doors
暂无补充释义。
相关例句
夏天我们常常在户外吃饭。
“啊，”她说。“外面是多么冷啊。雪花在飞舞，遍地都在结冰。还是请你睡在你温暖的床上吧，我可以来照料你呀。”
相关词条
sort out
get out of order
carry out
take-out restaurant
hear sb out
Anything unexpected may happen. a bolt from the blue;out of the blue
turn inside out
throw out