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- Common Air Tasking 普通空中任务
- For example, outdoor sows have little respiratory pathogen exposure compared with indoor sows who share a common air space. 例如室内养猪许多母猪生活在共同的空间里，所以它们就很容易感染上呼吸道的疾病，但在室外就不容易感染上呼吸道疾病。
- Though it may not seem like the most glamorously green invention, this redesign of the common air conditioner could save a quadrillion BTUs a year in the United States alone. 虽然它看起来不像是最神奇的绿色发明，但是这种对普通空调再改造的设计确实可以帮助一年内减少上千亿单位的热量，而这仅仅只是在美国所估计的数量。
- Army Air Corps and AVG "Flying Tiger" Armorer: Following AVG service, Colonel Rodewald volunteered to remain with Chennault and the fledgling China Air Task Force as an armaments officer. 陆军航空兵和美国航空志愿队（飞虎队）军械修复员：在美国航空志愿队（飞虎队）服役后，罗德沃尔德自愿和陈纳德留在中国，在刚形成的中国空中特遣部队担任武器官员。
- The environment of air in Menshan mountain is fresh and clean due to large amount of negative ion of oxygen in the air which the content reach about 2.2million per cu.cm, 4400 times of common air. 蒙山大气环境清新宜人，每立方厘米空气中负氧离子含量高达220万个，是空气中负氧离子的4400倍，被喻为“天然氧吧、养生圣地、长寿摇篮”。
- Acid rain is rain, snow or fog that is polluted by acid in the atmosphere and damages the environment.Two common air pollutants acidify rain: sulphur dioxide (SO2) and nitrogen oxide (NOX). 我们生活环境里的酸会对我们吃的食物、喝的水以及呼吸的空气产生影响。
- Knowledge without common sense counts for little. 光有学问而无常识，则这种学问无甚价值。
- common air traffic control system 军民通用航空管理系统
- Salt is a common food preservative. 盐是一种常用的食物防腐剂。
- There is still no cure for the common cold. 目前仍没有治愈感冒的良药。
- Huxley, I feel, has much in common with Wells. 我觉得赫胥黎和威尔士有很多共同之处。
- Rabbits and foxes are common in Britain. 兔子和狐狸在英国很常见。
- An Overview of CDMA Technology and the Common Air Interface 码分多址（CDMA）技术和公用空中接口综述
- Common tastes form a bond between the two men. 共同的爱好使两人结交为朋友。
- The two sisters have nothing in common. 两姐妹没有什么共同之处。
- She hasn't an ounce of common sense. 她一点儿常识也没有。
- He was regarded as heretic by the common people. 他被大众视为异教徒。
- Women's underclothes are a common fetish. 女人的内衣裤是常见的能引起性快感的恋物。
- They made an alliance against the common enemy. 他们联合起来抵御共同的敌人。
- He behaves as if he had no common sense. 他的言行就好像没有常识似的。
