ADJECTIVE | VERB + PROTEIN | PROTEIN + VERB | PROTEIN + NOUN | PHRASESADJECTIVE➤essential必需的蛋白質▸➤natural天然蛋白▸➤animal, vegetable動物/植物蛋白VERB + PROTEIN➤contain, supply含有/提供蛋白質◇Cereals supply essential protein and vitamins.穀類食物可提供人體必需的蛋白質和維生素。➤be high in, be rich in富含蛋白質▸➤produce產生蛋白質PROTEIN + VERB➤be found in sth在⋯中發現蛋白質◇Gluten is a protein found in wheat and other grains.麪筋是小麥和其他穀物含有的一種蛋白質。PROTEIN + NOUN➤content蛋白質含量▸➤level蛋白質水平▸➤intake蛋白質攝入量▸➤deficiency蛋白質的缺乏PHRASES➤a source of protein蛋白質來源