英文關鍵字
abstract
activity
apocynaceae
backgrounds
beauty
biology
black
cable
city
clean
climate
color
communication
concepts
connection
contrasts
curve
day
delivering
destruction
electrical
electricity
environment
equipment
frangipani
green
horizontal
industry
leaf
line
living
moving
natural
nature
organism
outdoors
pattern
plant
plumeria
power
rubra
scene
season
sending
sky
sunlight
supply
swaying
technology
telecommunication
telephone
tranquil
tranquility
tree
tropical
vein
wind
wire