Senior man working at scientist laboratory smiling happy and positive, thumb up doing excellent and approval sign

  • Image ID #2156923

  • Dimension: 9504x6336px.

  • Size: 8MB

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Senior man working at scientist laboratory smiling happy and positive, thumb up doing excellent and approval sign

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approval excellent happy laboratory man positive scientist senior sign smiling adult cheerful chemistry clinic confident cool experiment expression finger friendly gesture gesturing glasses good great hand handsome happiness hispanic indoors joy lab latin lifestyle male mature microscope ok okay portrait professional research science showing smile success successful symbol thumb up
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