n. 旋转木马

Merry-go-round \Mer"ry-go`-round"\, n.
Any revolving contrivance for affording amusement; esp., a
group of seats in the shape of hobbyhorses or other fanciful
animals, arranged in a circle on a platform that is rotated
by a mechanical drive, often to the accompaniment of music;
the seats often move up and down in synchrony with the
rotation; -- called also {carousel}. It is employed primarily
for the amusement of children, and is typically found at an
amusement park.