school students with teacher uniform working chemical laboratory modern science classroom interior horizontal full |
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| navigate by keyword : african american analyzing biology cabinet care cartoon chair chalkboard chemical chemistry children clinical coat college comfortable concept education equipment examination experiment exploration flask full furniture glassware group interior lab laboratory length lesson man microbiology mix people professional pupil race research room school science scientific scientist student table teacher test together tube uniform university white |
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| School students with teacher in uniform working in chemical laboratory modern science classroom interior horizontal full length vector illustration |
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