The best games - whether serious or not - are excellent learning tools.

最好的游戏——不管是否严肃游戏——都是优秀的学习工具。

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It's not yet clear whether his resignation offer is a serious one, or whether it's simply a tactical move.

还不清楚他的辞职请求是认真的，还是只是个策略上的举动。

《柯林斯英汉双解大词典》

With the background behind us, let's find out whether this is a serious issue or not.

了解这些背景知识后，让我们来判断这是否是一个严重的问题。

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There should be some sense by the end of the year,he says, whether or not serious progress is being made.

VOA: special.2009.05.23

"It seems that more clarity is likely to emerge about who did what to whom and whether or not war crimes, crimes against humanity and other very serious human rights abuses were committed by one or both sides,"

VOA: standard.2009.10.25

"I think that there will be a refocusing of how the UK can operate within Pakistan and Afghanistan, but also there will be some serious questions about whether or not the UK can maintain this expeditionary role" TV debates, a first in British politics, have thrust the outsider Nick Clegg of the Liberal Democrats into the role of kingmaker in a close election.

VOA: standard.2010.04.30

' Now maybe we'll be a little better equipped to handle the situation, to know whether the person is serious or not, or whether they have really thought it through to see if it really makes sense.

CNN: NBA stars learn the business plays

There are plenty of media moguls and would-be moguls out there who are always willing to kick the tires whenever a well-known brand comes up for sale and who like getting their names in the papers, whether they have any serious interest or not.

FORBES: What If The New Republic Had a Sale and Nobody Came?

There may be a time in which there was a serious question as to whether or not the War Powers resolution -- act was constitutional.

WHITEHOUSE: President Obama News Conference