The sky became sunny.

天空变得晴朗。

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The sunny sky suddenly clouded.

晴朗的天空突然阴云密布。

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Hundreds of birds fly in a sunny blue sky. The only sounds are bird calls and the soft noise made by tall grasses as the water slowly moves them.

无数的鸟在阳光明媚的蓝天中飞翔，这里你只能听到鸟的叫声以及当水流缓慢流经草的时候，这些草所发出的柔和的声音。

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