He was tired of the merry-go-round of romance and longed to settle down.

他厌倦了没完没了的风流韵事，渴望安定下来。

《牛津词典》

It is one big merry-go-round of happiness. Join the ride.

这是一个幸福的循环，就像旋转木马，坐上木马来吧。

youdao

Feeling that you are on the merry-go-round of life and just want to get off;

感觉你在过旋转木马的生活并且你只想下马；

youdao

As well as the managerial merry-go-round, the club has also seen a huge change in player personnel.

BBC: Elliott is confident the club can turn around their season

At one point in the ballet, the dancers unexpectedly form a human merry-go-round.

WSJ: Theatergoers: Can I Get an Amen? | Sightings by Terry Teachout

But this month's transfer merry-go-round looks like being a much more somber affair.

CNN: Football clubs struggling to stay afloat in a sea of debt