"So,key questions are with respect to the next rainy season.

VOA: standard.2009.08.31

Second, I'd like to identify two key questions that I really think important for you to be thinking about and addressing in the area of new technology and education.

接着确定两个关键问题,这两个问题很重要,你们要好好想想怎样,在新技术和教育中定位。

麻省理工公开课 - 媒体、教育、市场课程节选

And now this may lead to the key questions.

现在要引出关键问题了。

麻省理工公开课 - 媒体、教育、市场课程节选

Knowing how to answer the tough questions from the media, Smith-Valade said,is key.

VOA: standard.2010.02.25

"Iraq's future is in the hands of its own people, and Iraq's leaders must now make some hard choices necessary to resolve key political questions, to advance opportunity and to provide security for their towns and their cities,"

VOA: standard.2009.06.30