Idiom
It was he who put a spoke in my wheel.

destroyed the plan
thwarted in the execution of the plan
tried to cause an accident
helped in the execution of the plan

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Idiom
To plough the sands

To advance one's position in life
To afford hope or ground for expecting a good result
To work hard to achieve one's aim
To busy oneself in a way which cannot lead to any profitable result

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