A field with pink flowers on the background of snow-capped mountainsA field with pink flowers on the background of snow-capped mountains
The rays of the sun fall on the leaves of the treesThe rays of the sun fall on the leaves of the trees
Lecture with formulas on the blackboard in front of studentsLecture with formulas on the blackboard in front of students
Silhouette of people walking on the side of the roadSilhouette of people walking on the side of the road