As to importance, when originally identified as distinct, the archaea, too, were regarded as marginal-yet their methane-generating properties are now a factor in climate-change calculations.

至于其重要性，古菌群在最开始被认定为自成一类时，也被视为无关紧要——但是它们释放甲烷的特性现在已被纳入气候变化的考察因素。

youdao

The current system also increases the importance of the 100-150 marginal seats where most campaigning is concentrated, and electoral reformers argue that it means the voters in the remaining 400 seats are regarded as irrelevant.

BBC: THE CLAIM

Supply sliders remind us of the importance of incentives, especially as they pertain to marginal tax rates.

FORBES: We Need Demand, Not Protectionism

As to importance, when originally identified as distinct, the archaea, too, were regarded as marginal yet their methane-generating properties are now a factor in climate-change calculations.

ECONOMIST: A new domain of life