adj.不可改变的,固定不变的;不刊;不可移易;
例句:
Gravity is unalterable but the forms to reflect gravity are diverse.
重力是不变的,回应重力的方式是多样的.
The constitution was not a set of fundamental and broadly unalterable rules but simply " what happened "
那时,宪法并不是基本的、泛泛而谈一成不变的一套规定,而是单纯地描述 “ 发生的事 ”
The law must be steady, but not unalterable.
法律必须是稳定, 但也不是一成不变的.