Well, not always serious problems, but certainly negative situations.

总是针对严肃的问题，但肯定是于负面的情况。

But, we can also use it for not-so-serious situations — like more informal.

但是，我们也可以在那么严肃的情况下它，比如更加非正式的情况。

For example, to monkey around means to do things that are not useful or serious.

例如，“to monkey around”是指或严肃的事情。

So let's try a few less formal, less serious expressions.

那就让我们尝试一些那么正式的，那么严肃的表达吧。

It doesn't have to be about a really serious decision.

一定是非常严肃的决定。

And comedies about unserious middle class and lower class people falling in love.

喜剧必须是关于严肃的中产阶级和下层阶级坠入爱河。

And... - Those are, yeah, those are activities that aren't serious.

然后… … - 都是，对，都是些严肃的活动。

" It was the unseriousness, not to say the sheer idiocy, of the media."

“即是完全的蠢事，也明了媒体的严肃。”

But Trump repeatedly lied, spread baseless conspiracy theories and made a number of unserious or incoherent policy proposals.

但是特朗普一再撒谎，散布毫根据的阴谋论，并提出了一些严肃或连贯的政策建议。

Now makeup is often dismissed as frivolous but during the war, it took on extra importance in terms of morale.

在现代化妆经常被认为是严肃的，但是在战争期间，化妆在士气方面变得格外重要。

A lesser form or something not as serious we have called socialism.

一种较次要的形式或那么严肃的东西， 我们称之为社会主义。

And it's not meant to be played like a serious instrument.

而且它并意味着像严肃的乐器一样演奏。

Now let's turn to a " lighter, " more happy or less serious topic.

现在让我们转向一个“轻松”、更快乐或那么严肃的话题。

To his critics, this did not sound like serious history.

对他的批评者来，这听起来像是严肃的历史。

Well, there were the sort of the serious ones and the unserious ones.

嗯，有严肃的和严肃的。

There is no perspective of a serious negotiation.

根本存在进行严肃谈判的前景。

He doesn't like serious films very much, and likes to have a laugh, too.

他太喜欢严肃的电影，也喜欢开怀大笑。

Ask David to explain why American style libertarianism is an unserious philosophy.

请大卫解释为什么美式自由主义是一种严肃的哲学。

I am made unhappy when I think you don't care about such serious matters.

当我认为你关心这些严肃的事情时， 我感到很高兴。

Can't seriously be talking about me taking one of your kids, can we?

好吧，好吧，这太疯狂了。我们可能是在严肃的讨论我要带走一个孩子，是吗？