Even as no one can share the suffering of the overburdened mother, so no one can do this work for her.

甚至就如没人能分担操劳过度的妇女的痛苦一样，没有人能代替她们履行义务。

youdao

That is the pack's name for a selfish rider sitting at the back who doesn't do his or her share of the work.

BBC: England