Business conference and public in conference hall
nervous stress man
Ichthyosaur
Tired Caucasian exhausted sad upset fatigued little child boy kid son pupil
Animation of looping Alarm clock on green background. FUll HD. 4K
Harsh school history teacher in glasses with a beard scolds and yells at a student
Little African American guy boy writing notes task class lesson primary school
A teacher in pink blazer teaching young school students in class
Top twenty countdown from 20 to 1 with number sign
Top ten countdown from 10 to 1 with number sign
AI LSI semiconductor robot time flashing opening background ending
Knife sharpening pencils. Sharpen pencils. Sharpening pencils
Smart teacher and diverse student looking at laptop at blackboard. Erudition
Skilled business man dance to music from headphone at modern corridor. Urbane