广泛地任意谈话to talk freely

• 纵论国际形势

  talk freely about international affairs

• 纵论政治

  have a wide-ranging political discussion

• 纵论世界时装文化，他认为中国要走自己的路。

  In a wide-ranging discussion on world fashion culture, he thinks that China must go its own way.

• 纵论天下大事、臧否各界人物，往往是点到为止。

  In wide-ranging discussions about matters of great global import and assessments of figures in various fields, one often only touches upon the subjects.