mid adult teacher explaining lesson to university students in the classroom at university - 演講廳 個照片及圖片檔
teachers and professors thin line icons - editable stroke - professor, instructor, teacher, education, training, academics, student, teaching, learning, lecture, instruction, online education, e-learning - 演講廳 幅插畫檔、美工圖案、卡通及圖標
young female student writing in book while sitting by male friend at university classroom - 演講廳 個照片及圖片檔
convention, expo and trade show thin line icons - editable stroke - icons include a conference, seminar, business convention, business conference, business people, audience, presenter, attendees, vendors, networking - 演講廳 幅插畫檔、美工圖案、卡通及圖標
convention and seminar thin line icons - editable stroke - icons include a convention, conference, seminar, business convention, business conference, trade show, business people, audience, presenter, attendees, vendors, networking - 演講廳 幅插畫檔、美工圖案、卡通及圖標
