Under the ship, he printed in big red letters: C-O-N-G-R-A-T-U-L-A-T-I-O-N-S!
在船下面，他用红色大字写着：C-O-N-G-R-A-T-U-L-A-T-I-O-N-S！
2
Occurring sequentially from top to bottom, within each iteration, r, d, c, and t represent some of the standard disciplines executed in each iteration (Requirements, Design, Code, and Test).