The sneaker comes with orange suede and white mesh on the upper.运动鞋来与橙色绒面革和在鞋帮的白色滤网.washable suede耐洗绒面革He pulled on his heavy suede shoes and tied the laces.他穿上厚厚的软皮鞋，系上鞋带。She wore a brown suede jacket, belted at the wai...
Age structure is a foundational base to study the population dynamics.年龄结构是研究种群动态的重要基础.Objective To search for triterpene glycoside with new structure.目的:寻找结构新颖的三萜皂苷类化合物.The photosphere has a granular structure.光球还有颗粒结构。...