The coal industry may be fighting new federal emissions standards, air-pollution regulations and even the idea of carbon pricing, but those things are all a boon for carbon-free nuclear power.
现在，煤电行业可能正在应付新的联邦排放标准、空气污染法规、甚至是碳定价这一概念，但对于零碳排放的核能而言，以上种种却非常有利。
Traffic congestion and pollution in many urban areas are the most serious problems facing transportation policy makers, whose effective management polices may be bus priority and congestion pricing.
交通拥挤和污染是目前世界多数大中城市普遍面临的问题，公交优先和拥挤定价是针对该问题的有效管理措施。
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