英语翻译
问题描述：
英语翻译
proteins are needed for buliding the structures inside cells and in the formation of tissues and organs ,they are needed for teh growth of the body,to repair damaged parts,such as cut skin,and to replace tissues that are constantly being worn away,such as the lining of the mouth.
答
（人体）需要蛋白质来构建细胞内部结构、形成组织和器官.人体的生长发育、破损部位的修复（例如切开的表皮）、那些常被磨损的组织（例如口腔黏膜）的代谢,也都离不开蛋白质.