mutability
n. 易变性,性情不定; 突变性; 易弯性
1. the quality of being capable of mutation
The mutability of the past is the central tenet of Ingsoc.
窜改过去是英社的中心原则.
Newspeak, doublethink, the mutability of the past.
新话, 双重思想, 变易无常的过去.
There are some class immutable is impossible, then try to limit the mutability of them.
而总有些类显然不可能是不变类的, 这时也要尽可能的限制它的可变性.