Whether money supply actually is endogenous or exogenous is always an endless debatable problem in the financial field.

货币供给究竟是内生的还是外生的，这是货币金融领域始终争论不休的问题。

youdao

One other very important thing to understand about this defensive problem and this is one of the debatable issues between the old guard and the traditional interpretation; I'm still giving you the traditional view.

对于防御的问题还有另外一个很重要的因素,这也是老顽固们对传统观点,争论的一个话题,我还是采用传统观点的说法

耶鲁公开课 - 古希腊历史简介课程节选

That is all well and good, but for it not to be a problem there needs to be total trust, and it is debatable whether that exists in the England coaching team.

BBC: Ashton's uncertain future