They have the kind of objective truth that is ascertainable.

它们具有可确定的客观真理。

Webster also claimed to have invented words such as demoralize, appreciation, accompaniment, ascertainable and expenditure, even though these words had actually been in use for some centuries.

韦伯斯特还声称自己发明了诸如 demoralize、appreciation、accompaniment、accertainable 和 expensation 等词，尽词实际上已经使了几个世纪。

The community that speaks a language has learnt it, and modified it by processes almost all of which are not deliberate, but the results of causes operating according to more or less ascertainable laws.

说一种语言的社区已经学会了它，并通过过程对其进行了修改，几乎所有过程都不是故意的，而是根据或多或少可确定的规律运作的原因的结果。