yùdào jǐngchá, jiāojǐng huò gōngzuò rényuán shí, kěyǐ zhíjiē shuō nínhǎo jǐngguān huò nínhǎo

遇到警察、交警或工作人员时，可以直接说“您好，警官”或“您好”。

When encountering police officers, traffic police, or staff members, you can directly say "Hello, officer" or "Hello".