bottom ·phrase (IDIOM)
Definition: the most important fact in a situation Level: C2
最重要的是，环境保护应该是我们的首要任务。
___The ___bottom ___line is that environmental protection should be our top priority.
最重要的是，需要立即采取行动应对气候变化。
___The ___bottom ___line is that immediate action is required to address climate change.
在任何谈判中，理解最重要的因素是成功的关键。
In any negotiation, understanding ___the ___bottom ___line is crucial for success.