Translation:She enjoys helping others.
very odd, 她喜欢帮助别人 was marked incorrect when it was the correct answer. Unfortunately, Duo has limited how one can report these mistakes, so it is unreportable. Usually it is a ghost character -- one has sound was does not and it is impossible to choose the right one without a cut and paste from a previous reject.
"Enjoys to" is unnatural in English. Verbs used after "enjoy" should end with "ing." You can say "enjoys helping", "likes to help", or "likes helping."