There are two types of absences from the United States that are automatically presumed to break the continuity of residence for purposes of naturalization. •Absences of more than 6 months but less than one year; and •Absences of one year or more. 查了一下官方说法,好像是单次不超过六个月就行。没提一年内累加的事情,还请高 人指点。 谢谢