In our country, different (place) have different weather. In Heilongjiang, the weather is always very in winter and hot in summer.
in Hainan Island(岛), the weather is very warm in winter and also very hot in Kunming is a spring city. The weather is warm the time.
In London, the weather changes very often. You can see a sunny day in the morning, and then a rainy or a cloudy day one or two (hour) later. People often talk weather in London. They often(say), “If you don't like the weather, it (do not) matter. You can just wait! It will change in a minute. ”
Now people can do many things about weather. It's called man-made(人造的) weather. We (hope) one day we can decide(决定) the weather.