Definition
To repeatedly complain to someone about their behavior or to ask them to do something; to nag someone.
唠叨，催促
My mom is always on at me about keeping my room cleaner.
我妈妈总是唠叨我要把房间打扫得更干净。
The manager has been going on at the team to speed up on the project.
经理一直在催促团队加快项目的进度。
She kept going on at me about how I should find a stable job.
她一直唠叨我应该找一份稳定的工作。