needv.需要；必需n.需要；必要；缺乏aux.需要，必须（无时态、人称变化，后与不带 to 的动词不定式连用，多用于疑问句和否定句）need trend需要态势

1. The building was in need of repair.
   这座大楼需要维修了。
2. The roof has leaks in it,and the front steps need to be fixed.
   屋顶有漏洞，前台阶需要维修。