You really are serious about this, aren't you?

你对这事确实是认真的，是吧？

《柯林斯英汉双解大词典》

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》

The class is for students who are really serious about film.

这门课是为那些对电影确实很认真的学生而开设的。

youdao

"It doesn't hold up to serious mathematics because Thailand sees about 1.4 million medical travelers from outside of Thailand.

VOA: standard.2009.12.23

However, if you do happen to be an English or a literature major or someone who's just very serious about reading at that level, you will find plenty to chew on here.

然而，如果你刚好主修英语或是文学,或是任何以主修的水平很认真阅读的人，你将会在这里发现很多值得咀嚼的东西。

耶鲁公开课 - 1945年后的美国小说课程节选

I had just gotten over a serious illness that I won't bother to talk about except that it had something to do with the miserably weary splitting up and my feeling that everything was dead.

我刚熬过一场重大疾病，具体就不说了,只是这与我和妻子不幸的分离有些关系,我感觉万物都没有了生机。

耶鲁公开课 - 1945年后的美国小说课程节选

If we're serious about strengthening small businesses, if we're serious about creating a climate where our entrepreneurs can succeed, if we're serious about giving you the chance to prosper and grow, I believe, this administration firmly believes, that we need to pass health insurance reform in the United States of America.

WHITEHOUSE: President Obama Explains Why Health Insurance Reform is Crucial for Small Business | The White House

"The SEC threw the ball back in Baker's court and said 'We don't think you're really serious about reform, '" said Mercer Bullard , who runs Fund Democracy, an investor advocacy group.

FORBES: Magazine Article

If we're serious about this it can't just be a series of laws that are passed.

CNN: Gun debate: Where is the middle ground?