Someone who is separated from their wife or husband lives apart from them, but is not divorced.
Most single parents are either divorced or separated.
大多数单身父母不是离婚了,就是分居了。
If you are separated from someone, for example, your family, you are not able to be with them.
The idea of being separated from him, even for a few hours, was torture.
想到与他分开,哪怕只是几个小时,也是一种折磨。