can we translate to The women watch the children. ?I did but wasn't accepted
Case? Verbs don't have cases. They 'need' or 'take' cases.
"widzą" is 3rd person plural, and the verb needs its object (dzieci) to take Accusative.
Kobiety widzą dzieci - The women see children. It sounds like a statement. I just think that if you was to use this in a conversation you would probably identify 'the children'. The women see those/these children.