+4 = 8 

ㄊㄞˋtài

  1. 生化胺基酸一分子縮合得到一個肽鍵相連以此類推胺基酸縮合

peptide (two or more amino acids linked by peptide bonds CO-NH)​
peptide
Peptid <Biochem&gt (S, Chem)​