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3,299 相配
頁數
之 33
Handsome bearded smiling senior man sitting at home. Shopping online with credit card on cellphone. Concept of technology use by older people. Active modern life after retirement
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female student woman looking for books in library shelf
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Young scientist man making selfie shoot in chemical and mathematical equations wall room interior
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Young scientist man write chock in chemical and mathematical equations wall room interior
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scientist man disappointed about problems experiment in chemical and mathematical equations room
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Young scientist man make laboratory experiment in chemical and mathematical equations wall room
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Young scientist man clean his glasses in chemical and mathematical equations wall room interior
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university professor writing on the blackboard equations from the book
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Closeup of college professor adjusting microscope in the classroom
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A college professor shows the human body inside
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Aged professor working in the scientific laboratory with the blood samples
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Angry sculptor shouting and swinging hands in the workshop 4K
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collegue professor showing graphic to student on blackboard
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Male physician smiling, showing OK gesture, sure of successful treatment results
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Two medical students talks at campus background
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Asian girl playing maracas slow motion with gray background at home
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The male professor checks the solution of the problem during the privat consultation in his office. The blond female student in blue shirt wrote the task decision on her notebook and the man in looks through it with a pensil. The academic people sit at th
4K
0:10
doctor with documents smiling and posing
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doctor with documents smiling and posing
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Man scientist writes the word "science" on the glass
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Man scientist writes the word "science" on the glass
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scientist wrote mathematical formulas on a blackboard
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Learning English in a classroom, in a game form
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Young people listening the speaker on the conference and The men writing the information in the notebook.
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Student writing the text for work using the smartphone indoors in the audience. View from behind of a group of students in a classroom, listening as their teacher holds a lecture.
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A class on a university listening a teacher. Group of students in a classroom, listening as their teacher holds a lecture. 4 k
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Young tired professor having a break to talk on the phone
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Man in a suit leafing through the pages of a book.
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Adult woman lays a bunch of newspapers on a table
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Young male teacher or student holding chalk writing on chalkboard in classroom
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Senior man with laptop computer at home working with paper documents. Remote freelance or office work on retirement, active modern lifestyle of older people. Bookcase bookshelves in the background
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0:16
Modern senior man at home using cellphone. Professor talking on phone in library. Bookcase bookshelves in background. Active modern life after retirement.
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Modern senior man listening music with big black wireless headphones. Positive pensioner meloman dancing to music. Concept of technology use by older people. Active modern life after retirement
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little schoolboy. Close-up of a blond boy in school uniform. White shirt and blue vest. The boy is smiling and posing on the camera. The student has no anterior teeth. He is charming. Little Professor
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Handsome elderly senior man relaxing at home reading book. University professor enjoying retirement. Bookcase bookshelves in the background
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Senior man putting on big black wireless headphones. Male freelancer using laptop at night from home office while listening to music. Overworked businessman working on project in kitchen in evening
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Young teacher or student tell something near the blackboard.
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Learn science or chemistry formula confident beautiful woman teacher chalk blackboard background
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Portrait of a woman solving a difficult task, standing near the Board with formulas. The concept of science. Layout.
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hospital, profession, people and medicine concept - group of doctors with clipboard meeting and discussing something at medical office
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group of students with teacher on class learning lessons
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teenager shaggy boy nerd portrait he raised his finger up idea schoolboy glasses
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female professor doctor is trying experimental method of curing of hearing diseases by surgery
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4k footage of student girl adjusting white blouse and looking in camera
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Man in white robe sweeping the floor and talking on a Green Screen, Chroma Key.
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Animation of head and shoulders back view of a Caucasian man with hand on chin facing a green chalkboard with moving mathematical calculations formulae written in chalk 4k
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laboratory of pharmacists for the study of various medicines
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Smiling female teacher in the preschool
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Three young doctors looking at spine x-ray. Slow motion
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Happy business man with backpack walking in park
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頁數
之 33