He's really serious about Penny and wants to get engaged.

他对彭尼的确是认真的，他想跟她订婚。

《牛津词典》

"She got really serious," Dr. Etheridge said.

“她变得非常严肃。”以太里奇博士说。

youdao

"Then she got really serious," Dr.Etheridge said.

“然后她变得非常严肃。”以太里奇博士说。

youdao

Republicans say that budget shows the president is not really serious about helping small business.

VOA: standard.2009.03.16

with something also really serious.

严肃庄严之间的一种很好的平衡。

正在实习 - SpeakingMax英语口语达人

The first creation story doesn't really contain puns and wordplays, it's a little bit serious. The second creation story is full of them: there are all sorts of little ironies and puns in the Hebrew.

第一个创世纪故事中很少有双关语和文字游戏，有几分严肃，第二个故事却充满了这些：,希伯来语中有许多反讽和双关。

耶鲁公开课 - 旧约导论课程节选

First Minister Alex Salmond, a well-known curry fan, said the issue was "really serious".

BBC: NEWS | UK | Scotland | Curry industry 'could die' claim

They can self-correct by getting really serious about adopting best practices that assure sound governance.

FORBES: A New Public/Private Sector Partnership Is Poised to Tackle Global Corruption

Whether this poses a really serious problem should be clear by the end of the year.

ECONOMIST: The army