Maybe it's not the flags on their backs,or the medals on the

也许并不是因为在他们衣服背上的旗帜（应该是国旗的意思）,或是在他们脖上的奖牌.也许.
maybe语义要通顺的话单独译可能难说.maybe it's not 连起一起翻.就是也许并不是因为.有个因果的关系.我觉得