电、煤气和水垄断经营过去被认为是理所当然的。

Electricity, gas and water were considered to be natural monopolies.

《牛津词典》

你可能认为青蛙很容易抓到昆虫是理所当然的。

You may take it for granted that the frog catches insects easily.

youdao

有时，父母把孩子看作是自己的延续，他们认为自己决定孩子在生活中做什么是绝对正确和理所当然的。

Sometimes parents regard their children as extensions of themselves and think it only right and natural that they determine what their children do with their lives.

youdao

In the first passage, the statement about language by criticism, that sign and meaning can never coincide, is what is precisely taken for granted in the kind of language we call "literary."

在第一段，关于语言的主张，用批判的方式，认为符号和意思永远不能相矛盾，正是这个主张,被人们认为是理所当然的，对于我们所说的文学语言来说“

耶鲁公开课 - 文学理论导论课程节选

I think that they're really privileged and probably take their life for granted a little bit. I mean,

我认为他们很有特权，也许有点觉得自己的生活是理所当然的了。我是说，

名牌效应 - SpeakingMax英语口语达人

This is going to be probably a homework at some point to do this. For now, let's take it for granted. Let's take it for granted that we know how to calculate this derivative from an equation of state like this.

这可能是将来的一个课后作业,现在，请把这当成理所当然的，理所当然地认为我们,知道怎样从一个状态,方程计算这样的微分式。

麻省理工公开课 - 热力学与动力学课程节选