Two people are in the room .The little one is the son of the big one (还有如下)

问题描述:

Two people are in the room .The little one is the son of the big one (还有如下)
补充:,but the big one is not the father of the little one .Why?不仅要用英语回答,还要用中文解释

Mather
one 不一定是男的