coal-BNC²³⁶²¹³⁺¹ 例句 So the question is how fast China can introduce technologies to reduce carbon emissions from coal- burning, or else replace coal with cleaner forms of energy, both of which will be expensive. 所以，问题是中国如何快速的引进技术，以降低来自燃煤燃烧的二氧化碳排放量，或者替换为清洁能源煤炭，这两种产品将非常昂贵。 yeeyan