2 sentences

1. 这种野兔具有穴居的习性。

   zhè zhǒng yě​tù jù​yǒu xué​jū de xí​xìng.

   This type of wild rabbit has the habit of living in burrows.

   Source: Dong Chinese Dictionary

2. 远古时期的人类大多在山洞中穴居。

   yuǎn​gǔ shí​qī de rén​lèi dà​duō zài shān​dòng zhōng xué​jū.

   In ancient times, most humans lived in caves.

   Source: Dong Chinese Dictionary