polydeter

例句：

1. 1. The protein is essential for the growth of cells.
   这个蛋白质对于细胞的生长至关重要。
2. 2. Polypeptides are often used as building blocks in the production of drugs and vaccines.
   多肽经常被用作药物和疫苗生产的构建块。
3. 3. The study of polypeptides has led to new insights into the function of proteins.
   对多肽的研究已经揭示了蛋白质功能的新见解。