劍橋詞典If a company or an organization is carbon-zero, it does not release any carbon dioxide into the environment or it removes the same amount of carbon dioxide from the environment as it puts into it. 零碳（一家企業(yè)或機(jī)構(gòu)不向環(huán)境中釋放任何二氧化碳，或釋放與吸收二氧化碳的量相同） 也見carbon-neutral 返回 carbon-zero