'On'과 'Upon'을 사용하는 구동사 - 노력, 위험 감수 또는 공개(켜짐)

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

집중하다

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

신고하다

to demand something firmly and persistently

주장하다

to reveal information that was meant to be kept a secret

드러내다

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

고자질하다

to watch an event or incident without getting involved

지켜보다

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

스파이하다

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

작업하다