Probably the most important one, from some points of view the defining property, is that it is its own derivative.

从某些角度来看，最重要属可能是它是它自己衍生物。

Systems in our universe move from order to disorder, and it is that property of the universe that defines the direction of time's arrow.

我宇宙中系统会从有秩序变得无秩序。正是宇宙这属，了时间之箭方向。

More specifically, it refers to the defining properties of these general units: the categories of the noun, for example, include number, gender, case and countability; and of the verb, for example, tense, aspect, voice, etc.

更具体地说，它指是这些般单位属：例如名词类别包括数、、格和可数；动词类别包括时态、体、语态等。