因为在大多数农村地区，这一地区有足够的新鲜空气和繁茂的植被。
As in most rural areas, this area has plenty of fresh air and luxuriant vegetation.
在施工或翻新后，给设施通风能有所帮助，因为通风可以确保每小时足够的新鲜空气交换。
Out of facilities after construction or renovation can help, as can ensuring sufficient fresh air exchanges each hour.
如果采用空调系统，则应确保有足够的新鲜空气引入及保持系统有适当清洁和维修保养。
If air-conditioning system is used, care should be taken to ensure sufficient fresh air to be introduced into the system, and the system should be properly cleaned and maintained.
如果你到外面的阳光下走一走，呼吸一下新鲜空气，吃点蔬菜和水果，我保证你会有足够的精力去做沙拉，而且还能做其他事。
If you go outside for a walk in the sun, breathe fresh air and eat some fruits and vegetables, I guarantee that you'll have enough energy to prepare a salad and then some.
大部分人没有得到足够的阳光和新鲜空气。
它们是有营养的食物，新鲜空气和足够的锻炼。
它们是有营养的食物，新鲜空气和足够的锻炼。
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