His mind kept turning in an endless loop.

他思绪万千。

《牛津词典》

Because of this loop, which is promoted by warmer temperatures in winter and spring, well, it looks like the tundra may be turning into shrub land.

由于冬春两季气温的上升加剧了这样的循环，因此，苔原可能正在向灌木林地转变。

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People say that maneuver looks like the jet is turning inside of itself as I execute a mini power loop at the top.

人们说我在大回环的顶端做这个机动时飞机就好像是在绕着自己打转。

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From the trolls of hashtags to the conspiracy theorists to the heart-breaking goodbyes to the politics to the loop of information turning over and over until another piece of information broke the cycle and started its own.

FORBES: After Aurora's Tragedy, Warner Bros. Understood The Power Of Silence

The final leg of the journey sees the bus turning right on to George Street, performing a short loop, before heading west along the street.

BBC: Sir Chris Hoy

Creative Cloud has shortened the loop between the making of the work and the publicizing it, effectively turning productivity into a new social media metric, much as GitHub has for developers.

FORBES: Adobe's Creative Cloud And The Expansive Future Of The Digital Workplace