Step one: first draw two circles, and then draw two circles inside as wheels.
Step 2: Use a horizontal line to connect the two wheels, and then draw them into a trapezoid.
Step 3: Draw a triangle in the front, three rectangles in the back as the windows, and then draw a little highlight feeling.
Step 4: Draw the front and rear square car lights and the top car lights, and then draw some diffused dots for a bright feeling.
Step 5: Draw a cross in the middle of the car, write "120" below, and draw a horizontal line to distinguish the upper and lower parts of the car.
Step 6: Add some small horizontal lines behind the car and wheels to represent the speed line to give it the feeling of driving.
Step 7: Finally, just paint the painted ambulance with beautiful colors.