world

Colorful world

Colorful: 1.

Rich and colorful,

Full of light; Bright; (of color) bright and dazzling; smart

a

bird

along with

colorful

wing

A bird with beautiful wings

2.

Colorful;

Interesting,

Vivid

male

give

a

Colorful

account

about

life

exist

Samoa.

He vividly described life in Samoa.

The second "colorful" fits well.

Chinese manuscript is called "poetic rhyme"!

Mathematics is called ~ ~ ~ ~ "Mathematical Kingdom" or "Challenge XY" (aren't X and Y letters commonly used in mathematics)