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

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

If at any point, you've got something you want to ask about or some two bits you want to add, raise your hand and wiggle it around to make sure I see you.

任何时刻，如果你有什么想问的或者有什么想补充的，请举手并左右摆动，确保我能看到你。

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