mutability
n. 易變性,性情不定; 突變性; 易彎性
1. the quality of being capable of mutation
The mutability of the past is the central tenet of Ingsoc.
竄改過去是英社的中心原則.
Newspeak, doublethink, the mutability of the past.
新話, 雙重思想, 變易無常的過去.
There are some class immutable is impossible, then try to limit the mutability of them.
而總有些類顯然不可能是不變類的, 這時也要儘可能的限制它的可變性.