If it is a sudden brake, that is, to stop the car, you must step on the clutch brake together, because if you don't step on the clutch, the engine will still output power and the braking force will become smaller. After stepping on the clutch, the engine does not output power, and the car is stuffy. Just brake on four wheels.
Braking is a mechanical braking device that can slow down the speed, also called reducer. To put it simply: the brake pedal of the car is under the steering wheel. When you step on the brake pedal, the brake lever will be pressed down and transmitted to the brake drum, blocking the brake wheel and slowing down or stopping the car. The manual brake of the car is next to the gear and connected to the brake lever. There are also common bicycle brakes, which slow down by means of lever brake or disc brake fixed on the frame.