蔚蓝天空下是花儿盛开的地方。

Blue sky is a place where flowers bloom.

蔚蓝天空映照着大海, 水天一色,浑然一体.

The blue sky is mirrored in the blue sea, forming one integrated mass.

人们在领口处佩戴着蓝丝带，既作为入场的凭证，也象征着灾难来临前的蔚蓝天空。

They wore blue ribbons on their lapels as their entry credentials and as a symbol of the clear blue sky that preceded the moment everything changed.