When you ask about something that started in the past but continues to the present time, you use the Present Perfect tense, e.g.: I’ve been there for 5 years / I’ve been there for 5 years.

当你谈论在过去开始但是一直持续到现在的某事时，用现在完成时态，例如：I’ve been there for 5 years/我在那里已经5年了。

youdao

youdao

The young man still wanted to ask something, but the wise man stopped him and said, "When we are talking about the importance of today, we have wasted a lot of it."

年轻人还想问点什么，智者拦住了他，说：“当我们谈论今天的重要性时，我们已经浪费了很多时间。”

youdao

I tell you something about the second derivative of a function and ask you what is the function.

我告诉你一个函数的二阶导数,然后问你这个函数是什么

耶鲁公开课 - 基础物理课程节选

You can use it to describe or to ask questions about distance, about a length of something.

你可以用它来询问路程或者东西的长度。

How long课堂 - SpeakingMax英语口语达人

I wanted to tell you about early because I'm going to ask you to do something for three days and then write about that.

我提早通知大家是因为,我会让你们用三天的时间来做这个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But before we go to calls, we've got to take a break, but I also wanted to ask you about something called skiffs, and this is apparently the great competition within the agency , is how much skiff space you've got.

NPR: Intelligence Failures In 'Top Secret America'

The public does not want to understand the fiendish complexity of the EU. Many in the EU establishment draw a simple conclusion from that: never ask voters directly about something as complicated as a treaty.

ECONOMIST: Charlemagne

MS. CROWLEY: Governor, let me ask the President something about what you just said.

WHITEHOUSE: The White House