Christmas tree in the center of the screen backgroundChristmas tree in the center of the screen background
Vector graphics, image of a black zigzag on an orange backgroundVector graphics, image of a black zigzag on an orange background
A scientist on the background of a blackboard with formulasA scientist on the background of a blackboard with formulas
Показатель, примета, знак, по к-рым можно узнать, определить что-н..