In the film, the vagina can be transformed from a vehicle or aircraft to a humanist machine. So why do they change? In fact, this is not just for hypocrisy and embarrassment, but, more importantly, for different tasks. For example, in order to move quickly, it must be turned into a vehicle or aircraft; in order to fight with the enemy, it must become a flexible machine. Similarly, future aircraft and intelligent robbers also need to change outside or convert in order to adapt to different tas...