1 文書を見つけるための辞書。

• wild blue yonder, blue air, blue sky, blue
• 青天井, 蒼穹, 碧落, 蒼昊, 蒼天, 青空, 碧空, 蒼空, 碧天, 青天, 青雲
• the sky as viewed during daylight; "he shot an arrow into the blue"
• 昼間に見た空