油页岩 yóuyèyán oil shale Definitions Defs Origin Strokes Stroke Words Sentences Sents 油页岩 (油頁岩) yóuyèyán oil shale Frequency Written text 0.156 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
油页岩 (油頁岩) yóuyèyán oil shale Frequency Written text 0.156 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
