We know about the lives of dinosaurs from the skeletons,eggs.We know about the lives of dinosaurs from the skeletons,eggs and footprints they left behind.they left behind在此时从句么?是什么从句
问题描述：
We know about the lives of dinosaurs from the skeletons,eggs.
We know about the lives of dinosaurs from the skeletons,eggs and footprints they left behind.
they left behind在此时从句么?是什么从句
答
是从句,定语从句