翻译翻译!英语翻译!高手救命
救命的～快点～谢谢!
Stars twinkle for the same reason that the air shimmies above a radiator or a fire or hot pavement; because of warm air rising in the atmosphere.
Heat can move in one of three ways. The first is conductance. In conductance, the heat passes through something solid, such as wood or metal. This process is pretty slow.
Another way heat moves is radiation. In radiation, the heat passes directly through space in the form of photons, tiny packets of energy travelling at the speed of light. Radiation is the way that the sun's warmth reaches Earth.
Finally there's convection. In convection, heat warms the air. The warm air becomes less dense (and thus lighter) than the cool air around it, so it rises. Convection is the reason stars twinkle.
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using English consists of speaking English and writing compositions in English .in order to improve your spoken English,
you'd better take an active part in the teacher's lectures,answer
his question in english ,and try to speak as much English as you
can afterclass. writing English journals is the best way to improve your writing. at the same ,you should listen to ang more English