名詞 protein:

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 and legumes

1. You need more protein to build you up.
   你需要增加蛋白質以增強體質。
2. A vegetarian gets protein not from meat but from its analogues.
   素食者所攝取的蛋白質不是來自肉類而是來自近似肉類的食物。
3. Try to balance your diet by eating more fruit and less protein.
   多吃些水果，少攝入些蛋白質，使飲食均衡合理。
4. Pulses are a good source of protein for vegetarians.
   對於素食者來說，豆類食物是蛋白質的理想來源。
5. You should eat more high-protein diet.
   你應該多吃些高蛋白食物。

pro.tein

n.（名詞）
Any of a group of complex organic macromolecules that contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur and are composed of one or more chains of amino acids. Proteins are fundamental components of all living cells and include many substances, such as enzymes, hormones, and antibodies, that are necessary for the proper functioning of an organism. They are essential in the diet of animals for the growth and repair of tissue and can be obtained from foods such as meat, fish, eggs, milk, and legumes.
蛋白質：一種復雜的有機體大分子的組合，含有碳、氫、氧、氮，通常還有硫，由一個或多個氨基酸鏈構成蛋白質，是所有生命細胞的基本組成部分，它包含許多物質，比如酶、荷爾蒙和抗體，這些物質都是有機體正?；顒铀匦璧?，蛋白質是動物膳食的必需成份，對成長和組織發(fā)育至關重要，它可從肉類魚、雞蛋、牛奶和豆類食品中的攝取
n.attributive.（定語名詞）
Often used to modify another noun:
用來修飾另一個名詞：
例句：
protein compounds; protein diets.
蛋白質化合物；蛋白質豐富的膳食

來源：
French protéine
法語 protéine
from Late Greek prôteios [of the first quality]
源自 后期希臘語 prôteios [質量第一的]
from Greek prôtos [first] * see per
源自 希臘語 prôtos [第一] *參見 per

【引伸】
pro.teina.ceous