On climate change and social policy they strike the best balance between ambition and realism.

在气候变化和社会政策方面，他们在雄心和现实之间取得了最好的平衡。

Enough evidence exists for us to consider sugar very likely to be a toxic substance, and to make an informed decision about how best to balance the likely risks with the benefits.

足够的证据表明，糖很可能是一种有毒物质，我们要在“如何最好地平衡可能的风险和好处”时做出明智的决定。