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

That was a big question. With training and support from the IOM, these women have improved the quality of their products.

VOA: standard.2010.04.14

But finally, Reiner says, well, thank you for visiting us, it's all very wonderful, but you know our audience would really like to know; it seems like a simple question but it's awfully hard to understand, but how can a great, big, enormous, heavy thing like this airplane get off the ground?

但最后 雷纳说到,谢谢你的来访,太棒了,但你知道吗,我们的观众非常想知道,这问题貌似简单,但却很难让人明白,问题是,像这么一个巨大且沉重的飞机,是如何飞起来的呢

耶鲁公开课 - 古希腊历史简介课程节选

In an accompanying editorial, Edward Livingston of the University of Texas says the relatively small influence of volume on success of the transplants raises a big question.

VOA: standard.2010.07.14

However, his success as CEO is a big question mark hanging over Google at the moment.

FORBES: Don't Own Google for Next Six Months

No word on co-op play, but that set-up makes it a big question mark.

FORBES: Grand Theft Auto 5 Will be Bigger than 4, Red Dead and San Andreas Together

But it leaves a big question: What about the executives and directors who caused all this carnage?

FORBES: News Corp. Pays Itself $139 Million For Phone-Hacking Scandal -- Minus Legal Fees