have legs idiom informal
未完待续;对某事的后续报道还将持续较长时间
If a story in the news has legs, it will continue for a long time.
This latest scandal has legs - you'll probably still be reading about it in a year's time. 最近的丑闻还有下文。也许近一年内，你还会读到其后续报道。
经久不衰的;持续时间久且成功的
If something has legs, it can continue to exist and be successful.
The business has legs. 这家企业有很强的生命力。