2d graphics of crandashes in a transparent frosted glass on a plain gray background2d graphics of crandashes in a transparent frosted glass on a plain gray background
Formulas in chalk on a blackboard in the form of abstractionFormulas in chalk on a blackboard in the form of abstraction
There are several books on the shelf in the libraryThere are several books on the shelf in the library
The process of receiving or giving systematic instruction, especially at a school or university. An enlightening experience.