mer·ry-go-round /ˈmɛrigoˌraʊnd, gə-/
  旋轉木馬
  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.
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  merry-go-round
       n 1: a never-ending cycle of activities and events (especially
            when they seem to have little purpose); "if we lose the
            election the whole legislative merry-go-round will have
            to start over"
       2: large mechanical apparatus with seats for children to ride
          on [syn: carousel, carrousel, roundabout, whirligig]