We mustn't let these minor details obscure the main issue.

我们不能让枝节问题掩盖主要问题。

《牛津词典》

I tried to lead the discussion back to the main issue.

我试图把讨论引回到主要问题上。

《牛津词典》

This is the main issue.

这是一个主要问题。

youdao

This question became the main issue in the presidential election of eighteen ninety-six.

VOA: special.2010.07.01

"If you want to find a scapegoat you can, but that is not the main issue on which you want to focus.

VOA: standard.2009.04.02

"The main issue is we don't have enough raw water for Jakarta.

VOA: standard.2010.08.04

The main issue I think gaming journalism is suffering from right now is fatigue.

FORBES: Do Positive Mass Effect 3 Reviews Reveal A Conflict Of Interest In Gaming Journalism?

The main issue at the NATO conference, and one that the president stressed, is Afghanistan.

NPR: Bush Turns from NATO and Afghanistan to Iraq

Mr Rohatgi says the main issue is that public purpose needs to be well defined.

BBC: India land disputes pit farmers against middle class