There's still a big question mark hanging over his future with the team.

他在队中的前途还是个大问号。

《牛津词典》

They found a big question mark on the back of a painting.

她们在一幅画的背面发现了一个巨大的问号。

youdao

Right now I hope fans see it as a big question mark, because it should be.

现在我希望粉丝们把它看作一个谜题，因为它的确该是个谜。

youdao

University of Michigan transportation researcher Bruce Belzowski says one big question is what effect employee morale will have.

VOA: special.2009.06.05

Another big question that came up particularly starting in the 70s, women's movement. But in the 80s and into the 90s was a movement called "women's rights are human rights".

另一个重要问题就是,从70年代开始的女权运动,但是，在八九十年代时，另一场运动发展起来,叫做，“女权即人权“

普林斯顿公开课 - 人性课程节选

Now,the big question is who did it and why did they do it?

现在的问题是这是谁干的，原因为何？

耶鲁公开课 - 新约课程节选

One big question: With all the bidding for Guidant, why has there been no interest in St.

FORBES: Hard Bargain Could Bite J&J Back

The big question that's been shoved to the bottom of everybody's list is what is our political destiny.

NPR: What Will Be African-Americans' Political Destiny?

The big question is what does all of this mean for Back to School Spending 2012?

FORBES: 2012 Back To School Spending - Boom or Bust?