bearded man professor reading lecture talking and gesturing while students are listening writing sitting

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Bearded man professor is reading lecture talking and gesturing while students are listening and writing sitting at Royalty Free Stock Photo

Bearded man university teacher is reading lecture to adult students and gesturing , young people are writing and Royalty Free Stock Photo

Bearded man professor is reading lecture talking and gesturing while students are listening and writing sitting at

Bearded mature man professor is reading lecture talking and gesturing while students are listening and writing sitting at tables in spacious university classroom.