I want to try to sum up what we've learned from this discussion, but, first, let's thank John, Alex, and Julia for a really wonderful job.

我想总结一下从这场讨论中我们所学到的，不过首先谢谢约翰，亚历克斯，朱莉娅,谢谢他们的精彩表现。

耶鲁公开课 - 公正课程节选

Now, look, obviously I've learned this year politics can be a tough business, but there are times where you just can't help but laugh.

WHITEHOUSE: President Obama and Jay Leno at White House Correspondents Dinner | The White House

"I've learned that this has meaning for ... people in the airline industry, " Skiles said.

CNN: Crew of Hudson River plane receives keys to NYC

Mr. BAKER: I think we've learned that if we're going to do this, we could not do it on the cheap.

NPR: Is Bush Turning Back the Clock for Iraq Help?