“画蛇添足”，画蛇汉语成语，添足意思是用英语说画蛇时给蛇添上脚（paint a snake with feet），后比喻无中生有，画蛇多此一举。添足可以翻译为“be completely superfluous”，用英语说与英语俗语“gild the lily”意思相近，画蛇表示“to add unnecessary ornamentation to something beautiful in its own right”。添足
例句：
这件衣服很完美，用英语说不要再加任何东西了。画蛇那样只会画蛇添足。添足
The 用英语说dress is perfect. Don’t add anything to it at all. It would just be gilding the lily.
