慢速英语:研究称美国替换石燃料可能需要4.7万亿美元
日期:2019-07-07
Words in This Story
fossil fuel – n. a fuel, such as coal, oil, or natural gas, that is formed in the earth from dead plants or animals
source – n. where something comes from
emission – n. the act of producing or sending out something (such as energy or gas) from a source
capacity – n. the largest amount of something that can be held in a container, building, etc.
2/3 首页 上一页 1 2 3 下一页 尾页
