have legs
未完待续;经久不衰的
释义：
(informal) if you say that a news story, etc. has legs, you mean that people will continue to be interested in it for a long time(新闻报道等)会长期受到关注
例句：
This latest scandal has legs - you'll probably still be reading about it in a year's time.
The American economy still has legs.
