Oratore di mezza età che indica il documento vicino a un pubblico offuscato durante la conferenza di lavoro - Foto e immagini stock

Mature speaker adjusting headset during seminar with business people on blurred foreground

Back view of blurred business people near lecturer pointing with hand during conference

Smiling lecturer standing with open arms during conference near participants on blurred foreground

Back view of business people near african american lecturer pointing with finger during conference

Back view of blurred african american businessman asking question to lecturer with microphone

Back view of blurred businessman asking question to asian speaker during conference

Back view of businessman talking to asian speaker during conference

Back view of audience near lecturer pointing with hand while speaking in microphone during seminar

Mature professor holding chalk near multiethnic students in university

Mature teacher talking near blurred interracial students with laptops in university

Mature teacher pointing with hand near multiethnic students using laptops in university

Smiling teacher talking near blurred interracial students in university

Teacher pointing at chalkboard near blurred interracial students in university

Political party members sitting at desk during congress on blurred background

Interracial businessmen working in office near senior asian man on blurred foreground

Teacher using laptop near blurred students in university

Serious political agitator talking to voters in conference hall, banner