英文關鍵字
angle
bark
beauty
below
blue
branch
bright
brown
canopy
clear
color
conifer
day
environmental
evergreen
fall
fir
foliage
forest
giant
green
growth
high
image
large
leaf
leaves
light
looking
low
natural
nature
oak
old
pine
plant
scenic
sky
skyward
summer
sunlight
tall
top
tree
trunk
view
wilderness
wood