橡胶草 xiàngjiāocǎo Russian dandelion Origin Definitions Defs Strokes Stroke Words Sentences Sents 橡胶 橡膠 xiàngjiāo noun rubber rubber; caoutchouc; a highly elastic polymer that is waterproof, airtight, and non-conductive草 cǎo noun grass grass; straw; herbs; plants with non-woody stems