区别: difference, to distinguish, to discriminate, to make a distinction...
上学: to go to school, to attend school...
犹豫不决: hesitancy, indecision, to waver...
认证: to authenticate, to approve...
失传: (of skills etc) to die out, lost, extinct...
爆发: to break out, to erupt, to explode, to burst out...
