to begin a new role or position
新しい役割やポジションを始める (atarashii yakuwari ya pojishon o hajimeru)
"He confidently stepped into his position as project leader."
"彼は自信を持ってプロジェクトリーダーとしてその地位に就いた。" (Kare wa jishin o motte purojekuto riidaa toshite sono chi'i ni tsuita.)
to manage to communicate in a language, though not perfectly
to improve your professional skills or position
to show that someone has made a mistake or is lying
to begin or participate in an agreement or discussion
to deal with and gradually overcome stress
to explain something clearly and in detail