Without active American support and participation, the machinery of global co-operation could well fail.

没有了积极的美国人的支持和参与，全球合作机制可能面临失败。

youdao

Without active American support and participation, the machinery of global co-operation could well fail.

没有了积极的美国人的支持和参与，全球合作机制可能面临失败。

youdao