首先，所有的主要经济体必须提出明确的国家行动减少各自的排放量，着手在气候变化问题上开创新局面。

First, all major economies must put forward decisive national actions that will reduce their emissions, and begin to turn the corner on climate change.

youdao

首先，所有的主要经济体必须提出明确的国家行动减少各自的排放量，着手在气候变化问题上开创新局面。

First, all major economies must put forward decisive national actions that will reduce their emissions, and begin to turn the corner on climate change.

youdao