冬天来了，天气渐渐冷了，乌龟就要冬眠（小J的乌龟就是在冬眠）。
Winter has come, it's getting cold, the tortoise will hibernate.
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.
随着炉火渐渐减弱，屋子变得越来越冷了。
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