黑暗 + 的 + Noun
The word 黑暗 (hēi'àn) means 'darkness' or 'dark' and can function as both a noun and an adjective. It describes the absence of light in a physical sense and is also used metaphorically to refer to evil, corruption, or difficult times.
房间里一片黑暗,什么都看不见。
fángjiān lǐ yí piàn hēi'àn, shénme dōu kàn bú jiàn.
The room was completely dark, and nothing could be seen.
别怕黑暗,我陪你走过去。
bié pà hēi'àn, wǒ péi nǐ zǒu guòqù.
Don't be afraid of the dark; I'll walk through it with you.
那段黑暗的日子终于过去了。
nà duàn hēi'àn de rìzi zhōngyú guòqù le.
Those dark days have finally passed.