Chinese phrase
双方争论的关键是〜 shuāng fāng zhēng lùn de guān jiàn shì 〜
Meaning
The key issue both sides are arguing over is ___
When to use it
It names the main issue that two sides are arguing about. It introduces the central point of a disagreement before that issue is explained.
Example dialogue
这场气候政策讨论中，双方到底在争什么？ zhè chǎng qì hòu zhèng cè tǎo lùn zhōng shuāng fāng dào dǐ zài zhēng shén me
In this climate policy discussion, what exactly are both sides arguing about?
双方争论的关键是如何应对气候变化。 shuāng fāng zhēng lùn de guān jiàn shì rú hé yìng duì qì hòu biàn huà
The key issue both sides are arguing over is how to address climate change.