the initial part of an essay which explains the theme

开始解决问题to address an issue

• 新主席如何破题监管中国股市，成了很多股民关注的焦点。

  How the new chairman addresses regulation of the Chinese stock market is the focus of attention of many investors.

• 专家学者把破题思路聚焦在人才强国战略上。

  Experts focus their thoughts addressing the issue on the strategy of building up the strength of the country with talented people.