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兩個戴眼鏡的聰明現代孩子在做項目工作
kids doing a chemical experiment in laboratory
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pupils doing science together in class
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children are learning and doing science experiments in the classroom. two little sisters playing science experiment for home schooling. easy and fun science experiments for kids at home.
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students and their teacher conduct a science experiment in a laboratory
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animation of data processing with network of connections over schoolboys using microscope in class
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in school, in a classroom, a young asian student examines chemical reactions
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students in a science lab using microscopes
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video of happy biracial boy with microscope during lesson
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戴着面具的小女孩建造机器人 1
globe and connections against schoolgirl in laboratory
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兩個聰明的小朋友在練習電氣工程的興趣
animation of a group of happy schoolchildren using microscope in science class
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animation of globe with network of connections over schoolgirl writing
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conducting science experiment, child holding beakers with molecular structure animation
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modern ecologists doing tests
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多種族兒童坐在電腦顯示器前,在鍵盤上打字,而男性老師幫助他們
兩個孩子在做工程學的學校項目
同學們在室內用燈泡一起做學校項目
national science day
animation of mathematical equations over diverse scientist in lab cityscape
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chemistry teacher explaining molecular structures over children in science classroom
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兩個聰明的小朋友在家裡做學校項目
little girls interested in science
girl drips blue liquid with pipette at tutors support in lab
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science of the future
children using microscope and beakers over colorful science and education animation
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animation of dna structure over asian scientist working at laboratory against fit man working out
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school kids doing a chemical experiment in laboratory
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一個女孩<unk>接,一個男孩用螺旋<unk>做教育項目
students in a science lab looking at specimens under microscopes
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兩個學生一起做一個有趣的項目
school kids doing a chemical experiment in laboratory
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兩個瘋狂的孩子坐在辦公桌旁做項目工作
mental arithmetic lesson
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animation of kids using digital tablets over social media signs in the background
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happy diverse schoolgirls doing experiments in lab in slow motion at elementary school
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school teacher assisting school kids in chemical experiment in laboratory
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戴着面具的小女孩们正在建造机器人
portrait of schoolgirl standing with arms crossed in laboratory
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animation of mathematical equations over biracial girl smelling chemical in a flask at laboratory
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science of the future
kids and science. little boy and girl with face mask using a microscope.
兩個聰明的小朋友在做工程學的學校項目
little boy and girl with face mask using a microscope. kids and science.
兩個中學學生一起做一個項目
man pours catalyst girl student wondered of rising up drops
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兩個孩子一起做一個有趣的項目
asian man teacher and girl look at blue litmus test at table
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teacher explains test to little student with asian colleague
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