iridescent cloud的用法和样例：
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.
她的上空是高高的蓝天，一只云雀也在歌唱着，展翅飞向那朵轻盈透明的彩云，好像在与她比赛歌声。 - 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.
她仰着头，望着天空，唱着歌儿，她的小手指点着一朵飘浮在她头顶的金色羽毛般的小彩云。
