1、We try to accept only what is consistent with the internal evidence of the texts themselves.
我們只接受內(nèi)部論證中與資料本身看法一致的說法。

2、We cannot say for certain, but internal evidence indicates the following.
我們不能肯定地說，但內(nèi)部的證明顯示如下。

3、It is definitely older than the Ramayan and some internal evidence takes it as far as 23,000 B. c.
明確地，是比瑪雅語更加古老(至少是公元前5500年)，一些內(nèi)在證據(jù)就認為它是遠到公元前23,000年。

internal evidence翻譯