Milton claims that he will one day use the English language to express what he calls "some graver subject," some more important subject matter, and he proceeds to characterize what that graver subject will look like.

弥尔顿声称有一天他将用英语,来表达他所谓的“一些严肃的主题“,还有一些更重要的主题，然后他继续描述这些严肃的主题都是什么样的。

耶鲁公开课 - 弥尔顿课程节选

it's very difficult when one is so articulate and is able to express exactly what you want to say,

当一个人已经熟谙一门语言，能够用这门语言清楚明白地表达意思，

想学好英语吗？ - SpeakingMax英语口语达人

You just need to express in ASCII character, one at a time, and these brave souls are simply going to spell something out for us to hammer home this point of binary.

你们只需要每人代表一个ASCII码，这些勇敢的小伙子们就是想,清楚的让大家理解二进制原理。

哈佛公开课 - 计算机科学课程节选

As a closing remark, you can express your excitement at finally being able to see your loved one after such a long absence.

作为结束的话，你可以表达一下这么久以来即将见到心爱的人的激动心情。

I can't 课堂 - SpeakingMax英语口语达人

If we need a 7, this is the ones column, the twos, fours, eights, so here are our columns and this was our decimal system a moment ago, and I wanna express the number 7 and the only digits 0 I now have access to are zero and one, whereas, in decimal, dec meaning 10.

如果你需要7，这是一位，二位，四位，八位，这是位数,刚才说的十进制的位数，我想表达7而且,只能采用数字1与，在十进制中，dec意思是十。

哈佛公开课 - 计算机科学课程节选