snail; Taiwan pr. [gua1 niu2]

humble abode; to live (in a tiny, cramped space)

humble abode

to spiral

worm (mechanical engineering)

(anatomy) round window (one of the two openings from the middle ear into the inner ear)

snail

to advance at a snail's pace

worm-gear pair; worm drive; worm and worm gear

lit. to crawl like a snail and plod along like an old ox (idiom); fig. to move at a snail's pace; to make slow progress