一位严厉、严肃、年长的、聪明的男教授，戴着眼镜，穿着正式而优雅的西装，双手交叉放在胸前，专注地看着镜头，仿佛在监视学生们不要作弊。身体语言的概念 库存图片 一位严厉、严肃、年长的、聪明的男教授，戴着眼镜，穿着正式而优雅的西装，双手交叉放在胸前，专注地看着镜头，仿佛在监视学生们不要作弊。身体语言的概念
Intelligent male entrepreneur dressed in luxury suit walking near skyscrapers in financial district of megalopolis with coffee cup 库存图片 intelligent male entrepreneur dressed in luxury suit walking near skyscrapers in financial district of megalopolis with coffee cup
Intelligent male entrepreneur dressed in luxury suit walking near skyscrapers in financial district of megalopolis with coffee cup 免版税库存照片 intelligent male entrepreneur dressed in luxury suit walking near skyscrapers in financial district of megalopolis with coffee cup
年轻不剃须的聪明的男性穿正式衣裳，为工作使用数字式片剂，被聚焦入屏幕，坐在办公桌， isol 免版税库存照片 年轻不剃须的聪明的男性穿正式衣裳，为工作使用数字式片剂，被聚焦入屏幕，坐在办公桌， isol
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