胶原蛋白 Traditional 膠原蛋白 jiāo yuán dàn bái 🔊 collagen + Keep this word Meanings jiāo yuán dàn bái 膠原蛋白 collagen Its characters 胶jiāoto glue原yuánformerHSK 5蛋dànegg白báiwhiteHSK 5