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
C/N ratio can be taken as a rooting index of elm tip.
碳/氮比率可作为白榆新梢生根的指标。
3
So it looks a lot less messy if we just draw our Lewis structure like this for h cn, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.