If you have a lot of hot air in one location and a lot of cold air next to it, the line where they meet will be (2)windy.
如果一个地方有大量的热空气，它的旁边又有大量的冷空气，那么冷热空气相交的地方就会形成风。
If you have a lot of hot air in one location and a lot of cold air next to it, the line where they meet will be (2)windy.
如果一个地方有大量的热空气，它的旁边又有大量的冷空气，那么冷热空气相交的地方就会形成风。
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