"We are men and you are women."
Translation:אנחנו גברים ואתן נשים.
The word 'אנשים' is mainly used to talk about general groups of people, both male and female, even though the word itself is masculine. In this sentence there's distinction between men and women and therefore you should use the hebrew words which talk specifically about men\women.
SC, if you're taking the course in your browser, when you click on a new skill be sure to click on the "light bulb" button to read the "tips and notes" for that skill before clicking on "Start". If you're taking the course in a mobile app, or just want to review the notes that you missed, they are online at
(There may be other versions of the notes at other locations. Duolingo is horribly disorganized and negligent as to how they provide such resources.)