The mother who gave birth is little care since birth, the mother loves the child itself willing to sacrifice a child to the child to comfort the mother never complains that tired, we hear even less!
SE is the one who gave birth to the child but was gradually Se all love their own children to sacrifice for that child's mum never complained tired, but we heard MCI less.
Mom, is the one who gives birth to gradually raise up but what the parents all love their children willing to sacrifice for you so that you are comfortable I never complained of tired, we hear even less.