1
a polypeptide of [number] amino acids
表示多肽由多少氨基酸组成时，常用 of 引出数量。
This enzyme is a polypeptide of more than 100 amino acids.
这种酶是由100多个氨基酸组成的多肽。
多肽
先理解核心含义，再看它在真实句子里的用法。
多肽
a peptide containing 10 to more than 100 amino acids
This enzyme is a polypeptide of more than 100 amino acids.
这种酶是由100多个氨基酸组成的多肽。
由相同或不同氨基酸通过肽键连接而成的任何聚合物。
Any polymer of (same or different) amino acids joined via peptide bonds.
任何未折叠成蛋白质二级结构的此类聚合物。
Any such polymer that is not folded into a secondary structure of a protein.
含有最多100个氨基酸的小蛋白质；另见寡肽。
A small protein containing up to 100 amino acids; see also oligopeptide.
During digestion, proteins are broken down into smaller polypeptides and amino acids.
消化过程中，蛋白质被分解成更小的多肽和氨基酸。
Scientists synthesized a short polypeptide to study how it folds into a three-dimensional shape.
科学家合成了一种短多肽，以研究它如何折叠成三维结构。
Each protein in your body is made of one or more long polypeptide chains.
你体内的每种蛋白质都由一条或多条长的多肽链组成。
表示多肽由多少氨基酸组成时，常用 of 引出数量。
This enzyme is a polypeptide of more than 100 amino acids.
这种酶是由100多个氨基酸组成的多肽。
polypeptide 可作定语修饰名词，如 chain，构成复合名词，表示“多肽的”。
A polypeptide chain is composed of amino acids.
多肽链由氨基酸组成。
polypeptide 是可数名词，复数形式为 polypeptides；作主语表示一般事实时，谓语用复数。
Polypeptides are essential components of proteins.
多肽是蛋白质的重要组成部分。
Not this
Polypeptide is made of amino acids.
Use this
A polypeptide is made of amino acids.
polypeptide 是可数名词单数，单数可数名词前需要加冠词 a/an，不能裸用。
Not this
There are many polypeptide in the cell.
Use this
There are many polypeptides in the cell.
polypeptide 是可数名词，many 后必须接复数形式，因此要加 -s 变成 polypeptides。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
多肽链
A protein is made up of one or more polypeptide chains.
蛋白质由一个或多个多肽链组成。
多肽合成
Ribosomes are the site of polypeptide synthesis.
核糖体是多肽合成的场所。
多肽序列
The polypeptide sequence determines how the protein folds.
多肽序列决定蛋白质如何折叠。
多肽激素
Insulin is a well-known polypeptide hormone.
胰岛素是一种著名的多肽激素。
多肽主链
The polypeptide backbone is held together by peptide bonds.
多肽主链通过肽键连接在一起。
Use polypeptide naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
poly-意为“多”，peptide是“肽”，联想多个氨基酸手拉手串成一长链，就是polypeptide多肽。
语域：formal 常见场景：academic papers、biochemistry textbooks、laboratory reports polypeptide 是生物化学中的专业词，多用于学术论文、教科书和实验室报告等正式场合；日常对话中较少见，通常可译为“多肽”。
polypeptide 读 /ˌpɒliˈpeptaɪd/，重音在 -pep-。真正押韵的是 peptide（/ˈpeptaɪd/）。nucleotide 虽以 -tide 结尾，但重音在第一个音节，不押韵；chloride、cyanide、oxide、sulfide 只共享拼写 -ide（读 /aɪd/），重音和元音都不同，也不押韵。
Dictionary facts from ECDICT, WIKTIONARY.