Concentrating Free Stock Images

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Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Atrium Businesswoman - Vertical

Vertical shot of a businesswoman, talking on a cellphone, standing in an atrium. Vertical shot of a businesswoman, talking on a cellphone, standing in an atrium.

Medical doctor isolated in studio

Young doctor writes on a clipboard, isolated on white. Young doctor writes on a clipboard, isolated on white

Prairiedog eating

Standing prairiedog holding his dinner. Standing prairiedog holding his dinner

Adult Businesswoman woking on laptop

An adult businesswoman wearing a suite on a isolated white background working on a laptop with a phone on her desk. An adult businesswoman wearing a suite on a isolated white background working on a laptop with a phone on her desk

Hughes Enginehouse Chimney

The Hughes Enginehouse chimney at Moonta, South Australia.

Historic Hughes Copper Mine

The ruins of the Hughes engine house at Moonta Mines, South Australia. The ruins of the Hughes engine house at Moonta Mines, South Australia.

Couple Stretching by Pool - vertical

Couple stretching their legs by the poolside, smiling and concentrating - vertically framed. Couple stretching their legs by the poolside, smiling and concentrating - vertically framed

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Couple Stretching Legs by Pool - horizontal

A couple stretching their legs by the poolside, smiling and concentrating - horizontally framed. A couple stretching their legs by the poolside, smiling and concentrating - horizontally framed

Boy Shooting Basketball

Boy Shooting Basketball

Little Boy Building A Fairy House

Little Boy Building A Fairy House

Attractive business executive

Young attractive business executive working on a computer isolated on white, vertical

Young tennis player serving

Young tennis player serving

Infant girl playing with a cell phone

Infant baby girl sitting up looking at a cell phone, trying to figure out how it works. Infant baby girl sitting up looking at a cell phone, trying to figure out how it works

Business Woman Writing notes at desk

Business Woman Writing notes at desk isolated on white

Businessman on call

Businessman on call

Teenager simulating flying

Young woman dancing in studio. Young woman dancing in studio

Portrait of a man with hands on temples

The guy is worried and feels sick and tired. The guy is worried and feels sick and tired.

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Portrait of young businessman thingking

Portrait of young businessman thinking something and looking up. Portrait of young businessman thinking something and looking up

Renewable Energy: Solar: The newest and the cleanest way to prod

Solar boilers based on unique Fresnel collector technology. Solar boilers based on unique Fresnel collector technology

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Student Working and Concentrating

Student Working and Concentrating

Kangaroo Concentrates

Kangaroo concentrating on its surroundings. Kangaroo concentrating on its surroundings.

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Afro businessman talking on phone

Afro businessman talking on phone

Woman on office call

Woman on office call

Thinking Businessman - Vertical

Vertical shot of a businessman, with his head turned away from the camera, in deep thought talking on a cellphone. Vertical shot of a businessman, with his head turned away from the camera, in deep thought talking on a cellphone.

happy beautiful young model dreaming

black and white photo with caucasian teenager concentrating in demolished building. black and white photo with caucasian teenager concentrating in demolished building

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Closeup of man looking down

Closeup of man looking down with girl in the background.

Business Woman Writing notes at desk

Business Woman Writing notes at desk in a modern office

Toothpaste Concentration

Toothpaste Concentration

Young Lady with Glasses Concentrating

Young pretty Chinese women listening. Young pretty Chinese women listening

Schoolboy Studying In Classroom

Schoolboy Studying In Classroom

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Young girl reading

Young girl reading

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Female professional on phone call

Female professional on phone call

Man in concentration

Man in concentration

Concentrating on his notes

Concentrating on his notes

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Climbers traversing rockwall

Three female climbers are cautiously traversing a rock wall over a large pond. Three female climbers are cautiously traversing a rock wall over a large pond.

Dancing people practicing

White man and woman exercising movements. White man and woman exercising movements

Caucasian students dancing

Young man challenging his girlfriend. Young man challenging his girlfriend

Businessman writing notes on meeting

Businessman writing notes on meeting

Business Woman Writing notes at desk

Business Woman Writing notes at desk isolated on white

Portrait of a man with hands on temples

The guy is worried and feels sick and tired. The guy is worried and feels sick and tired.

Man wearing suit with welcome smile

Portrait of man wearing suit with welcome smiling. Portrait of man wearing suit with welcome smiling

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Portrait of a young ambitious business man

Portrait of a young ambitious business man. Isolated on white

Beautiful business woman thinking

Beautiful business woman thinking about somethinking while working

One white child smiling in street

Single girl having fun in street and enjoying spring season. Single girl having fun in street and enjoying spring season

Young woman and notebook

Beauty woman work with notebook in a grass. Beauty woman work with notebook in a grass

Man looking at laptop studying

A man is concentrating on his laptop. A man is concentrating on his laptop.

Lovely toddler holding toy in hand

Lovely toddler holding toy in hand

Business Woman Writing notes at desk

Business Woman Writing notes at desk in a modern office

Portrait of a young ambitious businessman

Portrait of a young ambitious businessman. Isolated on white

Four-year-old girl and her abacus

Four-year-old girl concentrating on her abacus. Four-year-old girl concentrating on her abacus

Young teens communicating

Beautiful girl challenging her boyfriend. Beautiful girl challenging her boyfriend

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