a metal device attached to the wheel of an illegally parked car that will only be removed when the owner pays an amount of money

I hope we're not going to find a wheel clamp on my car when we get back. 希望我们回来时不会在车上发现一个车轮固定夹。

to attach a wheel clamp (= a metal device that is removed when the owner pays money) to an illegally parked vehicle

Your car is likely to be towed away or wheel-clamped. 您的汽车可能会被拖走或被装上车轮固定夹。

He said officers wheel-clamped 2,325 cars across the city during the past year. 他说，在过去的一年里，警察在全市范围内给2325辆汽车装了车轮固定夹。