English Original
There was a man named Guo Han during the Tang Dynasty (618-907). One bright summer night, he suddenly saw a girl descending slowly from the sky. Observing her closely, he noticed her dress was seamless. Puzzled, he asked her why. The girl replied, "Heavenly clothes are not sewn with needle and thread."
This idiom is used metaphorically to describe the flawless handling of matters. It can also refer to a perfectly crafted poem or piece of writing.
中文翻译
唐朝（618-907年）有一位名叫郭翰的人。一个明亮的夏夜，他突然看见一位姑娘从天上缓缓飘落。他仔细端详，发现姑娘穿着的衣裙竟然无缝。他感到困惑，便询问缘由。姑娘答道：“天衣本非针线为缝。”
这个成语比喻事情处理得完美无缺，毫无破绽。也可用来形容诗文或其他文学作品写得十分完美。