If you are talking about a subject you know well, as I've just advised, prepared, preparing the speech itself should not be too difficult.

如果你正在谈论一个你很熟悉的话题，就像我刚才建议的，做好准备；准备演讲本身应该不是太难。

youdao

You know well that I'm no fool.

您知道我不是傻子。

youdao

You know well that it is I whom he seeks to revile.

你清楚他蓄意咒骂的人就是我。

youdao

Montclin did not move. "You know as well as I do that it is no use to tell Athnaise anything,"

VOA: special.2009.06.27

Well, you know, it goes back to the beginning of the formation of the personal computer industry, which--that sounds like a long time ago.

嗯，你知道，这要追溯到,个人电脑产业的形成初期，听起来相当久远了。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

And you friend says, "Well, you know I was kind of a nerd in high school. No one really liked me."

你的朋友说“呃，你知道，我在高中时是个书呆子。没什么人喜欢跟我打交道。”

I used to 课堂 - SpeakingMax英语口语达人

Tu should only be used with people you know well, such as office colleagues.

ECONOMIST: Business travel

But as you know well, the President and the Vice President are in meetings together all the time.

WHITEHOUSE: Press Briefing

You can always start with coworkers or people you know well offline first.

FORBES: Are You Collaboration Savvy?