They are fun, yet serious.

他们有趣，但也很严肃。

youdao

Yet serious problems were lurking below the surface.

然而，外表下隐藏着严重的问题。

youdao

I have never met such weird yet serious and earnest people.

我从没遇过这样古怪但严肃认真的人。

youdao

They were fun to read. Yet his books sometimes dealt with serious subjects including equality, responsibility and protecting the environment.

VOA: special.2010.05.02

Yet she continued to write. Several magazines soon learned that she was a serious writer.

VOA: special.2010.04.25

Yet Bucky Fuller was very serious about learning.

VOA: special.2010.05.30

Yet serious conflicts of interest remain for audit firms that continue to do consulting work for audit clients.

ECONOMIST: Only if it is properly governed

Still, it is unlikely that China's leaders think that social instability is yet serious enough to threaten their rule.

ECONOMIST: China: No cementing a dish of loose sand | The

Yet serious efforts to affect public policy often must be accompanied by this kind of activism , which tells policy makers that the public would be horrified if they allowed a feared outcome to happen.

FORBES: Fear and the Killer Robots Meme