乍一看问题似乎很简单。

At first glance the problem seemed easy.

《牛津词典》

对那两个问题哪一个都没有简单的答案。

There are no simple answers to either of those questions.

《柯林斯英汉双解大词典》

问题源于这一简单的事实…

The problem was due to the simple fact that...

《牛津词典》

Now, I wanted to compare it with another question that I--people have this simple idea that there's a best investment.

现在,让我们对比另一个问题,人们总是简单地认为存在一种最佳投资

耶鲁公开课 - 金融市场课程节选

Great question. It was easy and fun in the beginning,

好问题。一开始很简单，有意思，

成为教练的理由 - SpeakingMax英语口语达人

And I think this is best illustrated by giving you a simple little piece of code.

我认为给你看一段简单的代码,可以很好的说明这个问题。

麻省理工公开课 - 计算机科学及编程导论课程节选