I don`t understand. I wrote you a note saying I was going to get breakfast and I`d be right back.

怪了，我写给你一张纸条说我要去买早餐，马上就回来。

youdao

If you don t understand this, then don t worry because if you think you understand it, then you have probably misunderstood.

如果你不理解这一点，那么也不要担心，因为如果你认为你理解它，那么你有误解的可能。

youdao

They can tell you that they receive 20 calls every day from customers who donâ t understand how to set up a printer, but hardly any calls about how to actually print a document.

例如，他们会告诉你说，他们每天会接到20通客户咨询电话，询问如何设置一台打印机，但是几乎没有客户会打电话来问如何把某个文件打印出来。

youdao

The art teacher spoke for all of them when he said there was something about paul that he didn't understand.

VOA: special.2009.04.04

I certainly didn't understand how they even connected really to chemical reactions, much less other disciplines that I was interested in.

它们这么重要,我并不理解这些分子是什么，我也不知道它们。

麻省理工公开课 - 化学原理课程节选

I don't understand why you'd want to take a pill to fix something that we know little about.

我不明白为什么你会愿意吃药片来治好一些我们甚至都不清楚的毛病。

对付压力的方法 - SpeakingMax英语口语达人

Ms. JEAN ACKERMAN (Listener): See, I really don't understand how we got to this point.

NPR: Listeners' Money Questions Answered

Doctors didn't understand how the polio virus entered the body, and they didn't know how to treat it.

NEWSWEEK: Sports

"Uefa want to make the league stronger and more prestigious so I don't understand this decision, " he said.

BBC: Hodgson unhappy at keeper ruling