To study hard does good to your future.请问两个TO在这个句子中的用处是什么?

To study hard does good to your future.请问两个TO在这个句子中的用处是什么? study hard,( ) (肯定）to be good at your subject you shouid study hard to ------ your english 请问一个语法问题；English is hard to study,to study 在句中作什么状语啊 Does your brother intend to study German? 英语句子分析,Climbing mountain does good to your health how to study hard? You have to study hard to i____ your English. not study will be to your disadvantage这个句子对吗 what time does your sister usually go to school 这个句子中为什么会有两个 you think it is a good habit to study hard I have no bjeoction to hearing your story again 请问这个句子中的 to