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1·Moments ago, he got up to carry my bag for me and went into the cold open air.

片刻之前，他站起来替我拿包，走到寒冷的户外。

2·These modern architectural masterpieces are so many that this city almost feels like an open air museum.

这座城市的现代建筑杰作如此之多，感觉几乎就像一座露天博物馆。

3·In zoos, animals are no longer kept in cages, but in great spaces, either in the open air or in enormous greenhouses.

在动物园里，动物不再被关在笼子里，而是生活在广阔的空间里：要么是露天的环境，要么是巨大的温室。

4·The National Parks in England are called England's Breathing Spaces because they are places where people can go to be in the open air, away from the dirt and noise of cities.

英国的国家公园被称为“英国的呼吸空间”，因为在那里人们可以远离城市的尘土和噪音，享受户外的空气。

5·He likes to cook in the open air.

他喜欢在外面做饭。《牛津词典》

6·We sleep out under the stars, and eat our meals in the open air.

我们露宿在星空下，在户外用餐。《柯林斯英汉双解大词典》

7·We will give an open air concert in our town.

我们将在镇上举行一场露天音乐会。

8·Do you want to go camping in the open air?

你想去户外野营吗？

9·If the temperature is below 0℃, water will turn into ice in the open air.

如果温度低于0摄氏度，水在室外就会结冰。

10·To take exercise in doors is less beneficial than in the open air.

在室内锻炼不如在室外锻炼更有益。