How does Le Di fly?

Le Di flew into the sky according to the principle of aerodynamics. Le Di is an airplane in a comic book. In real life, planes take off because their wings are lifted up. The streamline distribution of the air around the wing when the aircraft is flying means that the cross section of the wing is asymmetrical up and down, and the streamline above the wing is dense and the velocity is high. The streamline below is sparse and the flow rate is small. According to Bernoulli equation, the pressure above the wing is small and the pressure below it is strong, resulting in upward lift acting on the wing and upward lift acting on the wing.