'On'および'Upon'を使用した句動詞 - 努力、危険を冒す、または明らかにする (オン)

to direct one's attention, energy, or efforts toward a particular goal, task, or objective

焦点を合わせる, 集中する

to provide information to law enforcement or authorities about someone's actions, particularly illegal or unethical actions

通報する, 告発する

to demand something firmly and persistently

主張する, 要求する

to reveal information that was meant to be kept a secret

明かす, 暴露する

to give away information one has obtained about someone, particularly to someone in authority

密告する, 告げ口する

to watch an event or incident without getting involved

見る, 観察する

to secretly observe someone or something with the intention of gathering confidential or hidden information

スパイする, 密かに観察する

to focus one's effort, time, or attention on something in order to achieve a particular goal

作業する, 集中する