The reservation of true meaning means that the actor deliberately conceals his true meaning and expresses other meanings. In principle, a civil act based on the reservation of true meaning can take effect, but it does not take effect when the reservation of true meaning is known to the other party.

The preservation of true will refers to the objective expression of legal protection will. As for whether the subjective meaning of the actor is consistent with the objective, there is no need to ask, as long as the actor has no defects in the expression of meaning (complete civil capacity and complete independent consciousness).