你好!learn和study的区别见下：【learn】用作及物动词(1) 主语+learn+ n./pron.He studied hard and finally learned the lesson. 他努力学习,终于掌握了这一课. The child has learned quite a few Tang poems. 这孩子学会了很多首唐诗. (2) 主语+learn+to- vYou must learn to keep your balance in skating. 在溜冰时你得学会保持平衡. She is learning to speak American English. 她在学说美式英语. (3) S+～+wh-/how to- vI'm learning how to repair motors. 我正在学习怎样修理发动机. You must learn when to speak and when to keep silent. 你必须学会什么时候讲话,什么时候沉默. (4)主语+learn+ v -ingI learnt reading and writing at school. 我在学校学会了读和写. He learned swimming in his childhood. 他在童年时学会了游泳. 此外,learn做及物动词还有其他用法,请参见字典. 【2和4的区别】：learn v -ing强调学习的过程;learn to- v 强调学习的结果.-----【study】用作及物动词时(1) 主语+study+ n./pron.He is studying German. 他在学习德语. Helen studied her spelling lesson for half an hour. 海伦花了半个小时学习拼写课程. study基本上没有你举例的(2) (3)的用法. 但是study后面可以跟wh-/how等引导的从句.比如： They are studying what to do next Sunday. 他们在研究下星期日做什么. He studied how to finish the work in the shortest possible time. 他研究了怎样才能在最短的时间里完成这项工作. 所以不存在你说的要对比learn to do 和study to do的情况.因为study没有那种用法.要区别词意的话,study 和learn 都可以表示“学习”, study 含有“研究”的意思, learn 指模仿性地学习.