油頁岩 Save Sign in to save words Simplified: 油页岩 yóuyèyán ㄧㄡˊ ㄧㄝˋ ㄧㄢˊ oil shale Character by character 油(yóu)oil 頁(yè)page 岩(yán)cliff A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0