someone who loves going to parties
パーティーが大好きな人 (paatii ga daisuki na hito)
"My roommate is a party animal; she goes out every weekend."
"私のルームメイトはa party animalです; 彼女は毎週末外出します。" (Watashi no rūmumeito wa **a party animal** desu; kanojo wa maishū matsu ga shimasu.)
to fulfill what is expected of you
to do what you promise to do
there is no limit to what you can achieve
having traditional beliefs or methods
to reach a stage of maturity or full potential
to ensure that fairness or punishment is properly given