student, stress and thinking in night home of university, college and school project fail, mistake and crisis. anxiety, worry and fear for indian woman with elearning technology, planning and problem - 懷疑 個照片及圖片檔不確定, 焦慮, 一個人
shot of a young businesswoman frowning while using a laptop in a modern office - 懷疑 個照片及圖片檔困惑, 擔心, 一個人
pensive young man holding smartphone and looking away while sitting on sofa at home - 懷疑 個照片及圖片檔男人, 無聊, 情緒壓力
black woman, wondering and pensive of idea in studio for decision, doubt and contemplating for choice. female person, curious and thinking for solution, isolated and blue background with deep thought - 懷疑 個照片及圖片檔一個人, 不確定, 好奇心
contemplative young creative professional wearing eyeglasses sitting at desk while working on desktop pc in office - 懷疑 個照片及圖片檔工作, 職業, 不確定
a bald man stares into the camera, his wide eyes betraying his surprise, with only the upper portion of his head in the frame - 懷疑 個照片及圖片檔幽默, 人的臉部
