Wall Street firms have spent years on the often-tortuous road to setting up operations in China.

华尔街投行花费了数年时间、经历了诸多周折才建立起了在华业务。

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We have travelled a tortuous road.

我们走过了曲折的道路。

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EXAMPLE: We must drive slowly and cautiously on the tortuous road through the mountains.

我们必须在山间曲折的公路上缓慢小心地驾车。

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Yet the road ahead remains long and tortuous.

CNN: Editorial: Korea's Triumph

The road from ape to astronaut has been long and tortuous.

FORBES: SETI's 'L Factor':? Will E.T. Actually Be Around Long Enough To Phone Home?