HSK 2
Liǎng jiàn shì de xìngzhì wánquán bùtóng.
The nature of the two matters is completely different.
HSK 4
Zhè jiàn shì de xìngzhì hěn yánzhòng.
The nature of this matter is very serious.
HSK 5
Huàxué xìngzhì hé wùlǐ xìngzhì bùtóng.
Chemical properties and physical properties are different.
