a teacher with a long white beard, big gray hair, and glasses is wearing a checkered shirt and sports jacket in front of a blackboard with complex formulas written on it. - 粉擦 個照片及圖片檔
a teacher with a long white beard, big gray hair, and glasses is wearing a checkered shirt and sports jacket in front of a blackboard with complex formulas written on it. - 粉擦 個照片及圖片檔黑板, 數學符號, 數學
a teacher with a long white beard, big gray hair, and glasses is wearing a checkered shirt and sports jacket in front of a blackboard with complex formulas written on it. - 粉擦 個照片及圖片檔教授, 數學符號, 背面拍攝
a teacher with a long white beard, big gray hair, and glasses is wearing a checkered shirt and sports jacket in front of a blackboard with complex formulas written on it. - 粉擦 個照片及圖片檔
a teacher with a long white beard, big gray hair, and glasses is wearing a checkered shirt and sports jacket in front of a blackboard with complex formulas written on it. - 粉擦 個照片及圖片檔
caucasian young woman teacher teaching student in classroom at school. attractive beautiful female instructor master explain and educate children with fun activity at preschool nursery kindergarten. - 粉擦 個照片及圖片檔教師, 課室, 幸福
caucasian young woman teacher teaching student in classroom at school. attractive beautiful female instructor master explain and educate children with fun activity at preschool nursery kindergarten. - 粉擦 個照片及圖片檔教師, 課室, 教授
shot of empty classroom with chairs under desks in elementary. school during vacation or holidays, a teaching classroom without students during a term break or the end of semester in kindergarten. - 粉擦 個照片及圖片檔課室, 教育, 學校建築
asian beautiful female teacher teaching young boy student in classroom. attractive women instructor master explain and educate lesson subject to children in classroom with happiness at kindergarten. - 粉擦 個照片及圖片檔
asian beautiful female teacher teaching young boy student in classroom. attractive women instructor master explain and educate lesson subject to children in classroom with happiness at kindergarten. - 粉擦 個照片及圖片檔
asian beautiful female teacher teaching young boy student in classroom. attractive women instructor master explain and educate lesson subject to children in classroom with happiness at kindergarten. - 粉擦 個照片及圖片檔小學
asian beautiful female teacher teaching young boy student in classroom. attractive women instructor master explain and educate lesson subject to children in classroom with happiness at kindergarten. - 粉擦 個照片及圖片檔亞洲和印度人, 兒童
young woman giving instructions to her work team while they work in the office - 粉擦 個照片及圖片檔顧客, 團隊工作, 金融
portrait of a happy young male teacher behind whiteboard in classroom of school - 粉擦 個照片及圖片檔土耳其, 教育, 土耳其人
portrait of a happy young male teacher behind whiteboard in classroom of school - 粉擦 個照片及圖片檔教師, 指導員, 高中
portrait of a happy young male teacher behind whiteboard in classroom of school - 粉擦 個照片及圖片檔教師, 指導員, 課室
black blank store sidewalk chalkboard. mockup on the street at the entrance to a store or restaurant with copy space - 粉擦 個照片及圖片檔商店招牌, 黑板, 無人
black blank store sidewalk chalkboard. mockup on the street at the entrance to a store or restaurant with copy space - 粉擦 個照片及圖片檔站姿, 空白, 商店招牌
planning time and ideas in cartoon style. colored pencils with hand-drawn drawings on a chalkboard background. creative vector weekly planner with place for text. - 粉擦 幅插畫檔、美工圖案、卡通及圖標課室
