黑曜岩 hēiyàoyán obsidian Definitions Defs Origin Strokes Stroke Words Sentences Sents 黑曜岩 hēiyàoyán obsidian noun obsidian (mining) Frequency Written text 0.008 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
黑曜岩 hēiyàoyán obsidian noun obsidian (mining) Frequency Written text 0.008 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
