The use frequency of the character yin appears very low in common speech and only appears as morpheme in the words.

“引”在现代汉语普通话里使用频率很低，而且只作为语素出现在词语里。

youdao

The idea of recommending humor in a presentation gets a bad rap because of the common and tired practice of opening up a speech with a joke, almost always a lame one.

因为那些把笑话用于演讲开始的尝试低级而老套，它们所使用的笑话大部分都是蹩脚的，导致建议在展示中使用幽默的想法受到了无理的谴责。

youdao

By "difficult," it is meant, I think, well, first of all that it is in some sense set apart from common speech, as a specialized and highly self-conscious use of language.

那么“难度”是什么呢？我看，第一点就是它那种特殊和高度自我意识的语言运用，让人感到与通常表达不一样。

youdao

In her speech, Miss Jordan also urged Americans to work for the common good: "Many fear the future.

VOA: special.2010.05.09

By "difficult," it is meant, I think, well, first of all that it is in some sense set apart from common speech, as a specialized and highly self-conscious use of language.

艰深“的意思，我认为，首先，某种程度上它是和平时谈话有所不同的，专业性极强，对语言运用自知也很高。

耶鲁公开课 - 现代诗歌课程节选

In common speech, the word "theory" is often used to refer to ideas that have not been proven, but to scientists and philosophers it has a completely different meaning.

FORBES: Sciences and Medicine

In his speech, Mr Denham said disadvantaged white boys had more in common with their poor black classmates than with middle-class white people.

BBC: Minister says councils 'blind' to needs of white people

The President is committed, as he made clear in his speech on Wednesday, to moving forward in a bipartisan way to reach common ground on this important issue of fiscal reform.

WHITEHOUSE: Press Briefing