to make (a decision)
彼は決断を下すことができない。
He can't make a decision.
たぶんわたしが決断を下す側だと思うの
I think I’m probably the one who makes the decisions.
— ラ・ラ・ランド (2016)
決定を下すのは彼の権限だ。
It is within his authority to make the decision.
問題は誰が決定を下すかということだ。
The issue is who makes the decision.
結論を下すのは君の義務です。
It is your duty to make the final decision.
彼は決心を下すのに長く時間がかかるということで有名だ。
He is famous for taking a long time to make up his mind.
これは難しい問題で、決定を下すのは誰にとっても容易なことではありません。
This is a difficult problem, and making a decision is not easy for anyone.