to have control or an advantage over someone
誰かに対してコントロールまたは優位性を持っている (dareka ni taishite kontorōru matawa yūisei o motte iru)
"The ruling party has the upper hand in this situation."
"支配党はこの状況で上位を占めています。" (shihaitō wa kono jōkyō de **jōi** o shimeteimasu)
to take on someone's role or responsibility
to look very happy and cheerful
to enjoy something very much
in very good health
to show the necessary ability when faced with a challenge
to aim for something very ambitious or difficult to achieve