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.