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》

通常来说，这种技术便捷又可移动，其优势既是显而易见的，也被认为是理所当然的，留下了更多微妙的话题供人们讨论：智能手机是否会干扰儿童的睡眠？

Often the advantages of convenient, mobile technology are both obvious and taken for granted, leaving more subtle topics for concerned discussion: are smartphones disturbing children's sleep?

youdao

这些东西我们经常认为是理所当然的。

The things we often take for granted.

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

Well you know what a point is, it's got an x- and a y- coordinate, it's natural to think about those two things as belonging as a single entity.

把这两个坐标认为，是属于一个独立的实体，是理所当然的事情,因此实现这个目的的。

麻省理工公开课 - 计算机科学及编程导论课程节选