But you don't know that there is an easy one for you down at number four 4 if you haven't bothered to look at number four.

但是你不知道,在数字4的时候会有一个简单的题目,如果你没有尝试去看数字。

麻省理工公开课 - 固态化学导论课程节选

in a very simple way, in its simplest form, to really just ask without any undertones,

简单地说，你就可以用不带任何画外音的最简洁表述，

Do you ever课堂 - SpeakingMax英语口语达人

And as you're reading them, look up the words you don't know. It's that simple.

看报时，查查你不认识的词。就是那么简单。

英语阅读：技巧 - SpeakingMax英语口语达人