1. In large open-air events like sporting events and music festivals. 在大型户外的活动，像运动会，音乐节举行中。
2. Police in Thailand say suspected Muslim insurgents opened fire on patrons and threw a bomb at an open-air restaurant in the troubled south. 泰国警方说，在动荡的南部地区，疑是穆斯林激进分子在一个露天餐厅向顾客开火并且投掷炸弹。
3. The Mansion, as it is known, is a traditional Chinese villa, a one-story house with many rooms connected by open-air walkways and beautiful gardens. 这座人们所知的大院，是一个传统的中式宅第，单层的房子，众多的房间由露天的走道和美丽的花园连接起来。
英英解释
n.
1. where the air is unconfined
2. in the open air
