英文關鍵字
ancestors
ancestry
antique
basic
class
classic
classroom
classrooms
closeup
college
course
descendents
educate
education
educational
elemntary
equipment
family
geneology
instruction
lecture
machine
mechanical
message
nostalgia
old
presentation
real
retro
school
teaching
time
train
training
tree
tutor
type
typewriter
typing
university
vintage
write