TBx,请看这段！您的质疑，专家站在我一边。是楼下网友给找到的

****Pumping the brakes, or even just releasing the brake pedal once and pushing it back down, while the car is at full throttle can lead to the loss of power brake pressure. Without that, there's little hope of stopping the car if it's still in gear at full throttle, said Fisher.****