They had a good laugh and a lively discussion.

他们笑得很开心，讨论得很热烈。

youdao

The students were in the midst of a lively discussion when the teacher came in.

正当同学们热烈讨论的时候，老师进来了。

《新英汉大辞典》

You'll be in for a lively discussion.

您将要参加一场活跃的讨论会。

youdao

And we do have a class I hope there'll be lively and Interesting discussion about some of these issues.

希望我们在讨论课上会有,生动有趣的讨论。

麻省理工公开课 - 媒体、教育、市场课程节选

On 29 June Mrs Bokova held in a lively discussion with the members of the UKNC Scotland Committee.

UNESCO: Director General visits Scotland

The panelists had a lively discussion about best practices for choosing business partners.

FORBES: Entrepreneurs On Business Partnerships: Work With Someone You Know

Participating Members of the European Parliament, researchers and representatives of NGOS, among others, were engaged during the session, which allowed for a lively discussion.

UNESCO: For the ocean, business as usual is not an option