Eric: Good afternoon Dell, How are you these days ? Long time no see.

Dell: Fine, I have been busy for a long time . By the way , can you do me a favor ?

Eric: Of course.

Dell: Do you what's the English for "彩虹" ?

Eric: It's " rainbow",

Dell: What do we usually express its colour, you know it has red , green, yellow , and so on.

Eric: You can say : It's colourful, Coulourful means a thing has many colours .

Dell: Ok, colorful. Could you please spell it for me ?

Eric: Sure , C-O-L-O-U-R-F-U-L, colourful.

Dell: Thanks, you really do me a big favor, thanks.

Eric: You are welcome.