木板 BC素材 第1頁

產品檢驗

編程學習

編程學習

數字孩子

數字孩子

有風車的一個女孩

登上領獎台的年輕女教師

有 SDGs17 目標圖標的男孩

產品檢驗

小學生並排站立

有 SDGs17 目標圖標的男孩

小學生並排站立

數字孩子

編程學習

Female high school student writing on white board

Girl in front of whiteboard with alphabet

Boy with sum on whiteboard

Woman with model wind turbine

Portrait of high school teacher

Man with model wind turbine

Blank billboard on roof of building

制服的一名婦女有留言簿的

拿著留言簿的婦女

一個女孩帶著微笑

教室黑板

微笑的商人和女商人

有留言簿的護士

三個小學女生在教室裡有留言板

會議室配有白板

有留言簿的一個女孩

站立在黑板前面的三個小學女孩

白板4人的家庭

一個商人用指針

很遠的商人

指向片劑個人計算機和商人的女商人

黑板

留言板的四個人

Student in front of chalkboard

Schoolgirl (8-9) having problems while learning in classroom

Boy writing answers to sums on whiteboard

有一個whiteboard的一個幼兒園男孩在公共汽車前面

Young business people having meeting in board room

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編程學習

麵條 拉麵 麺

三十多歲的白人女子站在白板前

高級夫婦與董事會

白色的四十多歲的男人用一隻手在桌子上

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Businessman writing on whiteboard

USA, New York State, New York City, Digital trading board

Cute toddler boy (2-3) standing against blackboard with city skyline drawn on it

Portrait of schoolgirl (14-15)

Studio portrait of woman with chalk speech bubble

Portrait of elementary school teacher in class

Businesswoman next to dry erase board

Man using smart phone while writing on note pad

Coworkers talking in office

Teenage boy (14-15) in classroom playing french horn

Cute toddler boy (2-3) standing against blackboard with city skyline drawn on it

Smiling girl (6-7) against blackboard

Woman writing heart on blackboard

Hand writing on chalkboard

Studio shot of boy (6-7) reading

Teacher with schoolboy in classroom

Teenage boy (14-15) sitting in classroom with arm raised

Computer mouse and chalkboard

Empty billboard

一位護士用白板

婦女的初中學生在黑板上寫字

有留言簿的護士

帶留言板的看護人

站立在黑板前面的三個男孩

一位護士用白板

一個高中生

女商人

  法

 白板

中學生

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Blank billboard in the middle of nowhere

Studio portrait of girl (8-9) next to blackboard

Man in front of blackboard with formulas

Portrait of girl (12-13) holding plate with doughnut

Teenage boy (14-15) in classroom

Portrait of teenage girl (14-15) at school

Young teacher posing against blackboard with bubbles written in chalk

Teenage girl holding blank whiteboard

Teacher with children (6-7) at school looking at camera

Portrait of male business executive at desk

Computer mouse next to mathematical formula

Corkboard with Note paper in shape of star

Children (10-11,12-13) at school

Portrait of blond girl (4-5)

Teacher with teenage students (14-15,16-17) at school

Studio portrait of woman with chalk speech bubble

Two boys holding apples in front of teacher

Portrait of teacher with blackboard in background

Businessman looking at whiteboard

Student in front of chalkboard

Portrait of elementary school teacher in class

Chalkboard in classroom

Businesswoman typing on laptop

Teacher talking to schoolboy while using laptop

Young teacher posing against blackboard with V marks imitating rain

Portrait of woman in front of blackboard

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Man using digital tablet

Young woman in front of whiteboard

Businessman using tablet computer

Girl writing E=MC2 on blackboard

Schoolboy holding blank blackboard

Businessman talking on cell phone

Close up of blackboard outside store, announcing unavailability of WiFi.

High school students with arms raised in classroom

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Businesswoman writing on whiteboard

Chalkboard with wood frame

藥店和藥劑師

刷新兩個

新鮮的兩個

新鮮的兩個

一個高中生

Young woman using digital tablet

一個男人和一個女人開會

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Studio portrait of Hispanic man actor

Studio shot ob blackboard with computer mouse

Teenage boy (14-15) sitting in classroom with tablet pc

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研究人員會議

使用黑板的高中生

使用黑板的高中生

使用黑板的高中生

40多歲的男性研究員的白大褂

有委員會的資深婦女

兩個人打了一台筆記本電腦

有留言簿的一名婦女

站立在黑板前面的男孩

人 留言板 兒童

寫菜單的婦女在黑板

一位護士用白板

六個孩子用白板

有風車的一個女孩

小學生並排站立

有 SDGs17 目標圖標的兒童

登上領獎台的年輕女教師

家長和老師笑著說

算盤和黑板放在教學挂件

老師在上課

有留言簿的男性醫生

女性醫生和護士有留言簿的

與一個白板和女商人的商人

兩個微笑的女商人

算盤和教室放在桌子上

小學女孩觀察試管

與白板的家庭

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Person erasing chalk drawing of gun on blackboard

Man using cell phone

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Businessman using cell phone in office

Still life of Einstein's law of relativity

Empty chalkboard with chalk, studio shot

Girl rising hand in classroom

Girl (6-7) having presentation in classroom

Businessman standing next to whiteboard

Teacher and schoolgirl (8-9) writing at whiteboard

View of arrows on blackboard and girl's hand

Woman standing in front of blackboard

Young couple, man with chalk outline

Male business executive working at desk

Schoolboy (10-11) and teacher face to face with blackboard in background

Teacher with teenage students (14-15,16-17) at school

Young man with chalk outline on blackboard, studio shot

Portrait of young woman in front of blackboard

Portrait of female teaching in classroom

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Teacher giving instructions at digital board

Schoolboy (10-11) and teacher face to face with blackboard in background

Teacher and student in classroom

Teenage boy (14-15) in classroom wearing glasses

Woman erasing blackboard

Portrait of woman standing next to whiteboard

Girl standing in front of blackboard

看試管的一件白色長袍的一名婦女研究員

使用黑板的高中生

使用黑板的高中生

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家長和老師笑著說

有留言簿的一個男孩

微笑的孩子

一個走路的商人

微笑的商人

會議室配有白板