to play an important part in something
何かで重要な役割を果たす (nanika de jūyōna yakuwari o hatasu)
"She played a pivotal role in the success of the team."
"彼女はチームの成功において重要な役割を果たしました。" (kanojo wa chīmu no seikō ni oite jūyōna yakuwari o hatashimashita)
to motivate or encourage a group to take action
something easy to achieve or target
to address the audience directly in a play or film
to do the same thing as someone else, especially online
a vote that is not yet decided and could go either way
recovering from an illness or injury