英文關鍵字
air
background
binding
book
content
cover
day
dictionary
education
field
grass
green
house
knowledge
landscape
lawn
leaf
learn
learning
letters
library
literature
nature
notebook
old
open
outdoor
page
pages
paper
park
pupil
read
rustle
school
spring
student
study
studying
summer
sun
sunny
teaching
text
tree
vintage
vocabulary
white
wind
words