HSK 6
Zǎoqī rénlèi zhù zài yándòng lǐ, yǐ duǒbì wēixiǎn.
Early humans lived in caves to shelter from danger.
HSK 7-9
Tànxiǎnduì zài shān lǐ fāxiàn le yí ge jùdà de yándòng.
The exploration team discovered a huge cave in the mountains.
HSK 7-9
Zhège yándòng lǐ yǒu měilì de zhōngrǔshí.
This cave has beautiful stalactites.