清洁燃料 qīngjiéránliào clean fuel Definitions Defs Origin Strokes Stroke Words Sentences Sents 清洁燃料 清潔燃料 qīngjiéránliào clean fuel fuel that produces little to no pollutants during the combustion process
清洁燃料 清潔燃料 qīngjiéránliào clean fuel fuel that produces little to no pollutants during the combustion process
