这一政策变动对整体经济的影响微乎其微。

The policy change had only a ___marginal effect on the overall economy.

森林砍伐仅对该地区的生物多样性造成了微小的减少。

Deforestation caused only a ___marginal reduction in biodiversity in that region.

价格差异如此微小，根本不值得考虑。

The difference in price is so ___marginal that it's not worth considering.