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That's because the hot air is rising and the cold air is rushing in to fill the space left behind. Whoosh!
因为热空气上升，冷空气就会迅速冲到热空气留下的位置里并填满整个空间。
youdao
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That's because the hot air is rising and the cold air is rushing in to fill the space left behind. Whoosh!
因为热空气上升，冷空气就会迅速冲到热空气留下的位置里并填满整个空间。
youdao