硬橡胶 yìngxiàngjiāo hard rubber Definitions Defs Origin Strokes Stroke Words Sentences Sents 硬 yìng adjective hard hard; stiff; solid; resistant to pressure橡胶 橡膠 xiàngjiāo noun rubber rubber; caoutchouc; a highly elastic polymer that is waterproof, airtight, and non-conductive
