监狱 + Noun (specifying type of prison)
监狱 (jiānyù) means "prison" or "jail" and refers to a facility where people are confined as punishment for crimes. It is commonly used in both formal and informal contexts when discussing the justice system or incarceration.
他在监狱里待了三年才被释放。
tā zài jiānyù lǐ dāi le sān nián cái bèi shìfàng.
He spent three years in prison before being released.
这座监狱的条件比以前改善了很多。
zhè zuò jiānyù de tiáojiàn bǐ yǐqián gǎishàn le hěn duō.
The conditions in this prison have improved a lot compared to before.
她每个月都会去监狱探望她的弟弟。
tā měi gè yuè dōu huì qù jiānyù tànwàng tā de dìdi.
She visits her younger brother in prison every month.