be onto
phrasal verbbe onto somebody
- (informal) to know about what somebody has done wrong
发现（某人做了坏事） - She knew the police would be onto them.
她知道警方将追查他们。
- She knew the police would be onto them.
- to be talking to somebody, usually in order to ask or tell them something
与…谈话；询问 - They've been onto me for ages to get a job.
很久以来，他们一直催促我找份工作。
- They've been onto me for ages to get a job.
be onto something
- to know about something or be in a situation that could lead to a good result for you
了解；掌握；处于有利地位 - Scientists believe they are onto something big.
科学家相信，他们将会有重大发现。 - She's onto a good thing with that new job.
她在新工作中将大有作为。
- Scientists believe they are onto something big.