bleu

例句：

1. 1. The sky is a beautiful shade of blue.
   天空是美丽的蓝色。
2. 2. She wore a blue dress to the wedding.
   她穿着一件蓝色的连衣裙参加了婚礼。
3. 3. The ocean is often described as a bleu sea.
   海洋通常被描述为一片蔚蓝的大海。