assume a defiant attitude
威圧的な態度を取る
assume a haughty demeanor
高慢な態度をとる
assume an air of indifference
無関心を装う
assume leadership [command]
指揮をとる
assume [take] power as President
大統領に就任する
assume [take on] the mantle of ...
…の衣鉢いはつを継ぐ
assume the presidency of the EU
ＥＵの議長に就任する
assume [fill] the role of ...
…の役を引き受ける［果たす］
assumed debt
引受債務
assumption of responsibility [risk]
責任［危険］の引き受け
