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(3)原因二 (4)原因三 (5)指出主要原因 (6)解決建議一 (7)解決建議二 例文: Generation gap between parents and children Nowadays , there are more and more misunderstanding between parents and children which is so called generation gap . It is estimated that (75 percentages of parents often plain their children39。s unreasonable behavior while children usually think their parents too old fashioned). Why have there been so much misunderstanding between parents and children? Maybe the reasons can be list