Definice a význam slova „a bellowing cow soon forgets her calf“ v angličtině

Maggie had been committed to a project, but when it became too challenging, she gave up and moved on, proving that a bellowing cow soon forgets her calf.

Maria had been part of a social group, but when she had a falling out with one of the members, they quickly excluded her and moved on, proving that a bellowing cow soon forgets her calf.