In fact, the art of tendering the lips for these amatory salutes follows the principles laid down in treatises on legerdemain for performing the trick called Forcing a Card.

事实上，为这些爱意致意献上嘴唇的艺术遵循了有关骗术的论文中规定的原则，这些原则用于执行称为 Forcing a Card 的把戏。