A letter or telephone call comes from someone you have not met, and you find yourself imagining what the person looks like, putting a face to the hidden voice.
译文：一个你从没见过面的人给你寄来一封信或打来一个电话，而你无声无息地想象着这个人是个什么样儿，猜测出这个隐秘声音的人长着一张哪种面孔。
请问,put a face to 该怎么样理解？目前分词putting和前面的imagining 都是yourself宾语补语？
很感谢。
A letter or telephone call comes from someone you have not met, and you find yourself imagining what the person looks like, putting a face to the hidden voice.
imagining是find的宾补，putting...是imagining的方法状语，即通过给隐藏的声音安装一个面孔这种方法来想象这个人的样子。put本来搭配介词on或in, 但声音没空间形状，不可以用on或in，用to表示目的地即可。
