There are no trails of the wings in the sky, while the birds has flied away. 怎么翻译
问题描述：
There are no trails of the wings in the sky, while the birds has flied away. 怎么翻译
答
天空没有翅膀的痕迹，但鸟儿已经飞过。
答
雁过无痕
.鸟儿已经飞过,却不留一丝痕迹