I do want to save the world什么语法中间为什么用do?

do you want to save the changes I do want to save the world什么语法中间为什么用do? I want to learn it.How do I save the document?合并为一句 All I want to do is save your life.请分析一下这句话的结构,特别是is与save DO YOU WANT TO SAVE THESE SETTINGS是什么意思 Do you want to save currently generated log before quitting? i want to do want you want 请译1:DO YOU WANT TO RUN OR SAVE THIS FILE?2:RUN 3:SAVE If you can I want to save your I just want to do what i want to do what do I want Jim to do? i can do whatever i want to I will do everything I can (to save) money to buy a computer.为什么to save是啊 Do my best to do what I want to do! Do I want to do,to do the right thing! Save your breath!I don't want to hear it.Save your breath!I don't want to hear it.翻译! do you want to delete all save game and profile data? I want to be a ______ ,because I can save people's livesRT