碧空

例句：

1. 1. The sun was shining brightly over the blue sky.
   太阳在晴朗的蓝天上闪闪发光。
2. 2. The children were playing happily in the clear sky.
   孩子们在晴朗的天空中快乐地玩耍。
3. 3. The birds flew high above the blue sky.
   鸟儿在晴朗的天空中飞得很高。