How to brake suddenly when driving at high speed on a motorcycle with gears?

When a motorcycle with gear is driving at high speed, it suddenly needs to brake suddenly when it is in the fourth or fifth gear. If there is a clutch, don't bring it first, put on the brake first, and then bring the clutch when the speed slows down (preferably after the speed drops to 30 yards), so that the engine can be used to slow down. This method is safer and more desirable. If there is no clutch, just press the brake directly through the Panasonic throttle handle. Of course, it is safer to use the front and rear brakes together.