Read Edit View history 页岩油 yèyányóu shale oil Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 页岩油/頁岩油 · yèyányóu · shale oil 2026/03/04 页岩油 / 頁岩油 yèyányóu shale oil shale oil 美国是世界上最大的页岩油生产国之一。 created sense Mar 4, 2026, 02:25 AM