wither on the vine idiom literary
（通常指因缺乏帮助或支持而）逐渐消失，渐渐破灭
If something withers on the vine, it is destroyed very gradually, usually because no one does anything to help or support it.
When the new resort was built, the tourist trade in smaller hotels withered on the vine. 随着新度假地的建成，小型旅馆的游客数量大幅萎缩。