the generals picked up their pens and signed their names to the agreement spread before them.这里的to the agreement spread

问题描述:

the generals picked up their pens and signed their names to the agreement spread before them.这里的to the agreement spread before them怎么解释,什么用法

没有什么特殊用法,连词成句罢了.理解时要同前面的sign连起来
sign names to 往...上前面
spread before them 修饰the agreement
完整翻译过来就是:
将军们拿起笔并往摊放在他们面前的协议书上签名