noun
a hole or tunnel in the ground made by animals such as rabbits for them to live in
verb
to make a hole or a tunnel in the ground by digging 挖掘（洞或洞穴通道）；挖洞 SYNdig
(+ adv./prep.)
Earthworms burrow deep into the soil.
蚯蚓钻土很深。
~ sth + adv./prep.
The rodent burrowed its way into the sand.
这只鼠掘洞钻进沙里。