Schools in the sky is still blue without impurities, even the clouds are few.

学校的天空依然是不带杂质的蓝，连云彩都很少。

youdao

Schools in the sky is still blue without impurities, even the clouds are few.

学校的天空依然是不带杂质的蓝，连云彩都很少。

youdao