She heard footsteps in the hall and then the man from the Electrictiy Board opened the door这里的man后面的from是什么用法

问题描述:

She heard footsteps in the hall and then the man from the Electrictiy Board opened the door
这里的man后面的from是什么用法

from此处为介词,译为:来自..........

She heard footsteps in the hall 她听到大厅里有脚步声
然后
the man from the Electrictiy Board 来自供电局的那个男人
(from the Electrictiy Board 限定前面的man,做定语.)
打开了门