随着时间的流逝，天气渐渐冷了起来，终于到了一年一度的燕子南迁的时候了。
Time just flied. It was getting colder and colder. Finally their annual migration time came. One early morning, all swallows gathered together.
正好寒冷的冬天渐渐近了，天气也越来越冷了，我的礼物在这个时候刚好能起到它防寒预暖的作用。
At this time, I can't be able too parsimonious. Just right the winter will come, the weather turns colder and colder, my gift will play its role.
水会充满岩石的缝隙，天气非常冷时，水会结冰，这样，使得缝隙更大，渐渐地一片片小石块剥蚀下来。
Water may fill a crack in a rock; it freezes when it is very cold and, in doing so, makes the crack wider. Gradually little pieces of rack break away.
水会充满岩石的缝隙，天气非常冷时，水会结冰，这样，使得缝隙更大，渐渐地一片片小石块剥蚀下来。
Water may fill a crack in a rock; it freezes when it is very cold and, in doing so, makes the crack wider. Gradually little pieces of rack break away.
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