in which the amount of carbon dioxide produced has been reduced to nothing or is balanced by actions that protect the environment 碳平衡的（指碳排放量减低为零，或通过环保措施抵消排放） All of these fuels are renewable and carbon-neutral. 所有这些燃料都可再生并达至碳中和。 🔊🔊 a carbon-neutral house that uses no energy from external sources 零碳的房屋，不使用外部能源 buildings designed to be carbon-neutral 设计为碳中和的建筑物