风速随时间、天气和地点而变化。
Wind speed changes from time to time, depending on the time of day, weather and location.
在天气晴朗时从一个较暗的地点，在适当的时间，可以看见跨过天空的微弱光带。
In a clear sky from a dark location at the right time, a faint band of light is visible across the sky.
天气和气候是紧密相连的：天气是在一定地点上一定时间内的大气状况，然而气候是一段时期内天气条件的综合状况。
Weather and climate are intimately related: weather is the state of the atmosphere at a given place and time, while climate is the aggregate of weather conditions over time.
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