请帮忙翻译并讲解下这个句子.
问题描述：
请帮忙翻译并讲解下这个句子.
His leadership of the country during the depression and the later war was in great part responsible for making the US the superpower that it is today
答
这是今天他对国家的领导在大萧条时期和后来的战争中很大一部分是为使美国这个超级大国的责任