What are the car light phrases?

The formula of headlights is as follows: 1. Forced merging of vehicles: forced merging of vehicles. Car language: flashing indicates agreement, and flashing several times in a row indicates disagreement. 2. Remind the green light in front of the car: Remind the green light in front of the car: just flash the headlights. 3. Thank the front car for giving way: Thank the front car for giving way: Press the double flashing light three times. 4, please give way to the front car: please give way to the front car: headlights can flash. If the car in front is driving slowly, you can flash headlights to tell the driver to overtake and prompt the driver to give way.