Difficult words: carbon neutral (companies or processes that balance the spread of carbon dioxide when they remove it from the environment), in line (in agreement with plans, rules, or policy), operational (ready to work).

困难的词: 碳中和(当它们从环境中移除二氧化碳时, 平衡二氧化碳扩散的公司或过程), 符合(符合计划, 规则或政策), 可操作(准备工作)。