• 基础释义
  • 例句
  • 四级真题
  • 柯林斯词典释义
  • 英英词典释义
  • 行业词典释义
例句
英语四级真题
    As part of the Kids Live Well campaign-expected to be announced nationwide Wednesday—participating restaurants must promise to offer at least one children's meal that has fewer than 600 calories(卡路里), no soft drinks and at least two items from the following food groups: fruits, vegetables, whole grains, lean proteins or low-fat dairy.
    出自-2012年12月听力原文
柯林斯高阶英汉双解学习词典释义
  • N-MASS
    蛋白质
    Protein is a substance found in food and drink such as meat, eggs, and milk. You need protein in order to grow and be healthy.
    例句
    Fish was a major source of protein for the working man. 鱼肉曾是劳动者的主要蛋白质来源。 ...a high protein diet. 高蛋白饮食
英英词典释义
  • Noun
    1. any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk
    "a diet high in protein"
行业词典
  • 体育: 蛋白质;
    医学: 蛋白〔质〕:一组复杂有机化合物的任何一种,含有碳、氢、氧、氮,通常还含硫。其中氮为特征性成分。蛋白质广泛分布于动植物体内,为所有细胞原生质的主要成分,是主要由α-氨基酸通过肽键连接起来的高分子化合物。蛋白质内一般发现有20多种不同的氨基酸。每种蛋白质都有其独特的基因所限定的氨基酸顺序。这种氨基酸顺序决定了蛋白质的形态和功能。蛋白质可以是酶、结构成分、激素、免疫球蛋白等,并参与氧的传递、肌肉收缩、电子转移、身体其他活动以及光合作用。蛋白质可分类为:简单蛋白或球状蛋白:包括身体中大部分蛋白;一般溶于水或盐溶液;
    水产: 蛋白质;不同氨基酸以肽键相连所组成的具有一定空间结构的生物大分子物质。;
    生物化学: 蛋白质;