必须要跟具体的修饰成分来继续说明是在怎么样的一个春天里  如不加补充说明则该说法是错误的  例如：I  broke  up  with  my  beloved  in  that  cold  spring  in  2012  ; It  is  said  by  eschatologists  that  the  earth  will  be  engulfed  by  fire  in  the  very  December  in  2012. in  spring  则只是一个简单的状语  只表示动作发生的时间  而不强调这个时间有什么不同  例如：Many  travellers  schedule  and  implement  their  itineraries  in  spring  ; Most  beautiful  girls  wear  less  either  for  sheer  nice  and  cool  or  to  lure  potential  preys  in  summer  ,or  from  late  spring  to  early  autumn.
在春天是in the spring还是in spring,加不加the有什么区别