iridescent cloud的用法和樣例：
例句
- Over her head, high up in the blue, a lark that was soaring towards the same gauzy cloud was singing, as if in rivalry.
她的上空是高高的藍天，一隻雲雀也在歌唱著，展翅飛向那朵輕盈透明的彩雲，好像在與她比賽歌聲。 - With her head bent back, she was gazing up at the sky and singing, while one of her little hands was pointing to a tiny cloud that hovered like a golden feather above her head.
她仰著頭，望著天空，唱著歌兒，她的小手指點著一朵飄浮在她頭頂的金色羽毛般的小彩雲。
