wēi​gān​jiù​shī

to raise a child with great hardship

偎干就湿 偎乾就濕 wēi​gān​jiù​shī
to raise a child with great hardship
Describes the selfless toil of a mother raising a child; literally refers to a mother sleeping on a wet patch of the bed so her child can stay dry.
to lead a hard life in dependence on others
Metaphorical extension of parental sacrifice referring to one who endures hardship while depending on others for a living