| 肽 |
tài jiàn | peptide bond CO-NH / bond in protein between carboxyl radical and amino radical |
| 肽 |
tài | peptide (two or more amino acids linked by peptide bonds CO-NH) |
| 键 |
jiàn | key (on a piano or computer keyboard) / button (on a mouse or other device) / chemical bond / linchpin |