never changing 永远不变的,始终如一的,恒定的 disillusion was the almost invariable result. 幻想破灭是几乎永远不变的结局。 ■(of a noun in an inflected language) having the same form in both the singular and the plural, as does relais in French [屈折变化语言]名词单复数同形的(如法语中relais) ■(Mathematics)(of a quantity) constant (数)不变量的
派生 invariability noun invariableness noun 语源
late Middle English: from French, or from late Latin invariabilis, from in- 'not' + variabilis (see variable)