learn everything from scratch中的scratch是什么意思?为什么是这个词呢?

阅读理解（很急）Many people go to school for education.They learn language,history,politics,math and so on.Others goto learn a skill so that they can find a job.School education is very important and useful.Yet,no one can learn everything fro learn honest confront everything是什么意思 No one can learn ____from school A.anything B.everything try to learn something about everything and everything about something 意思 There are various kinds of theme parks,with a different park fro almost everything请问这句话中的两个介词 with 和 for 作什么用? I want _____ everything about it.A to learn B learn C learns D learning to learn everything about something的意思是什么to learn everything about something ,to learn something about everything意思 是求精,求博.还是求博,求精?逻辑有点小乱, everything everything everything Waiting until the night before to try to learn everything will only tire you out learn everything from scratch中的scratch是什么意思?为什么是这个词呢? no one can learn () from school .A something B:anything C:nothing D:everything If our parents do everything for us ,we won't learn to depend on ()AthemBusCthemslevesDourselves School education is very important and useful.The students not only learn language but also get an education.Yet,n______ can learn everything from school.Great scientists such as Edison,Newton,Galileo and Einstein,didn't learn everything from school study fro exams 的中文翻译 learn learn