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 chemical chemist chemistry child childhood class curious difficult discovery education equipment experiment glasses investigate isolated kid knowledge lab laboratory learn learning lesson little looking microscope microscopic optical puzzled research school schoolboy science scientific scientist sit sitting study technology test testtube thinking tube

Difficult Lesson Royalty-Free Stock Photo


Difficult lesson Stock Photo
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Difficult lesson #29122611
Description

Black puzzled boy in chemistry class with microscope and lab glass equipment

Difficult lesson
Student learning a difficult lesson
Spending day at home
Student helping her frustrated friend to learn lesson
Worried student trying to understand difficult lesson

Three confused pupils listening to their teacher.
Three pupils sitting sadly at the desk.

Children in a classroom trying to read the book.
Frustrated student studying using laptop in a campus

Teenager girl, fatigue pain in neck muscles, kneads neck muscle gymnastics, long difficult lesson Internet, hard work
A difficult lesson at an informatics lecture

Close-up portrait of her she nice attractive worried frightened terrified brown-haired girl biting lip waiting text exam
A female student concerned about difficult lesson. Smart young people study at the college. Education, college, university,
A female student indisposed about difficult lesson. Smart young people study at the college. Education, college, university,
Puzzled black student sitting in front of laptop, not understanding difficult lesson, having difficulty studying online