HSK 2
Tā dāng le èrshí nián de yùjǐng.
He worked as a prison guard for twenty years.
HSK 7-9
Yùjǐng měitiān xúnluó sān cì.
The prison guards patrol three times a day.
HSK 7-9
Nàgè yùjǐng duì qiúfàn hěn yángé.
That prison guard is very strict with the inmates.
