Give details of any significant dates on which the applicant needs to be in Aust

xiaoguangfu

请问600签证的Give details of any significant dates on which the applicant needs to be in Australia是填详细哪天来澳洲吗仍是甚么严重流动的详细日期？好比来加入1/1的婚礼。。。？
假如只是来投亲，没有要加入严重流动怎么填？