Walgren says there could still be questions unanswered and they only need to answer 3 questions.

Walgren说仍然会有待解的问题，而他们只需要回答三个问题。

youdao

Answer 3: China has the friendliest people and the best food in the world!

回答三：中国有世界上最友好的人民和最美味的佳肴！

youdao

He says those questions became even more difficult to answer after the 9/11 attacks by a group of Sunni Arab terrorists that killed 3,000 people on American soil, and after the massive U.S.military deployments in Afghanistan and Iraq.

VOA: standard.2010.03.18

In this case, I'm going to get back the answer 3 F-O-O because the user typed in F-O-O, but wait a minute, what's with this?

假若这样，我得到了答案3,因为用户输入了，等一下，用这个干吗？

哈佛公开课 - 计算机科学课程节选

Path number 3 is a constant temperature path, and I already wrote the answer.

它是一个等温过程，我已经写出了答案。

麻省理工公开课 - 热力学与动力学课程节选

Most experts agree that increasing patient engagement and improving self-management skills for chronic disease will greatly reduce healthcare inefficiencies, but right now, there are limited resources available to patients for around-the-clock guidance, available to answer the 3 a.m. questions.

FORBES: How Virtual Health Assistants Can Reshape Healthcare

That is the question scores of scholars, scientists and business leaders hope to answer at Microgeneration 3 in southern Italy this week.

FORBES: Backup Generators Are the Bad and Ugly of Decentralized Energy

Streaming live on Forbes, LocalVox founder Trevor Sumner will answer questions from readers at 3 p.m.

FORBES: Announcing A Video Live Chat With Trevor Sumner Of LocalVox