给爸妈申请续签,只申请了一个多月,结果批了两个月。visitor record纸上有一条addition condition写:must undergo immigration medical examination within 30 days for further extensions。请问大家,这个意思是不是说如果不需要再次续签的话,就可以不体检了? 我怕自己的理解有误。谢谢!