英文關鍵字
adult
biology
caucasian
chemistry
child
childhood
children
class
classroom
college
concept
discovery
dna
education
elementary
equipment
experiment
female
girl
group
high
horizontal
indoor
knowledge
lab
laboratory
learn
learning
lesson
microscope
model
modern
people
person
primary
pupil
research
school
schoolboy
science
scientist
student
study
studying
teacher
technology
teenager
test
woman
young