HSK 7-9
不法
bùfǎ形
lawless; illegal; unlawful
警方查处了多个不法商家。
Jǐng fāng chá chǔ le duō gè bù fǎ shāng jiā.
The police investigated several unlawful businesses.
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Appears across levels (7-9) in the HSK 3.0 word list.