There is a question mark over the future of geriatric care.

老年保健医学的未来是一个问号。

《柯林斯英汉双解大词典》

He hasn't won, so at the moment there is a question mark over Sunday's game.

他还没有赢，所以现在周日的比赛结果还是个大大的问号呢。

youdao

Orlando's 99.94 defensive efficiency mark over the 16-game stretch is the league's fifth best, and virtually identical to its pre-trade performance.

奥兰多在16场比赛中99.94的防守效率在联盟中排名第五，几乎与大换血前的表现无异。

youdao

Mark Bedau of Reed College in Oregon says Mister Venter's work marks an important step over traditional genetic engineering of individual genes.

VOA: special.2010.07.20

The lamb will then be eaten as a family meal, and its blood will be smeared on the doorposts to mark the house so the angel of death knows to pass over that house -handy and the pun works in Hebrew, as well as English, In addition, each family is to eat unleavened bread.

然后这家人把羊吃掉，然后把羊血涂在门柱上，作为标记,所以当死亡天使经过的时候便可以看到,这里有一个在希伯来语和英语中都能讲得通双关语，除此之外，每一家都要吃没有发酵的面包。

耶鲁公开课 - 旧约导论课程节选

International Olympic Committee spokesman Mark Adams said he watched the big win by Canada over Slovakia, but he did not seem concerned for the tournament here.

VOA: standard.2010.02.15

And it would raise a question mark over the means testing of social care.

BBC: Merge NHS and social care, says Labour

Taken in its strictest definition, there is a question mark over whether celibacy is possible.

BBC: Is it even possible to live a celibate life?

The big question mark over the Romney growth package has been that of monetary policy.

FORBES: Memo to Mitt: Take Ben Bernanke's Resignation On Day One