all their lives they had lived in a town.这个句子后半部分they had lived in a town已经是完整的一句话了,

题目

all their lives they had lived in a town.这个句子后半部分they had lived in a town已经是完整的一句话了,

答案

“他们的一生都生活中一个小镇上.”
all their lives 是 "for all their lives" 的缩写,作状语,意思是“他们的一生的时间”