五气是中医学中按照五行属性，从气（气味）方面对事物进行推演归类的一种分类标准，并按照五行理论，来阐释、推演五气（气味）中的复杂联系。中医学中五气所包含的内容和意义有很多，比较主流的是将风、暑、湿、燥、寒称之为五气。
星期三，随着美军最后一个战斗旅从伊拉克撤至科威特，五角大楼终于可以松一口气。
There was a sigh of relief at the Pentagon Wednesday as the U.S. Army's final combat brigade crossed from Iraq into Kuwait.
五年后他回到家，不再是那个能翻山越岭、并扛着沉重的化石一口气行走数英里的健康小伙儿了。
After five years he was home. He was never again the healthy young man who climbed mountains and carried heavy bags of fossils for miles.
根据英国石油公司的数据，这相当于北美350.8万亿立方英尺天然气储量的五倍多。
That’s more than five times the 350.8 trillion cubic feet of gas held in North America, according to BP.
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