If you need to quickly make your opponent lose their balance during a fight, here are some techniques to consider: 1. **Grab your opponent's wrist or shoulder**: By grabbing your opponent's wrist or shoulder, you can apply force to make them lose their balance. 2. **Use your center of gravity**: Apply pressure in the direction of your opponent's center of gravity, such as pushing back on their shoulders or waist, or hitting them from the side to make them lose their balance. 3. **Leg trip**: Use your legs to trip your opponent's legs, or quickly move forward when your opponent is not paying attention, causing them to lose their center of gravity. 4. **Twist and turn**: By quickly turning or twisting your body, you can force your opponent to adjust their center of gravity and lose their balance. 5. **Compression techniques**: By pressing on specific parts of your opponent, such as their back or neck, your opponent's range of motion is restricted, affecting their balance. 6. **Throwing techniques**: Use some basic wrestling or martial arts throwing movements, such as the "throw" and "throw" movements in wrestling, to quickly make your opponent lose their balance. 7. **Concentration**: Distract your opponent's attention and make them lose control of their center of gravity, causing them to lose their balance. Please note that fighting or attacking another person is dangerous and in many cases illegal. If you encounter a conflict, it is recommended that you try to seek a peaceful resolution or avoid physical confrontation.