wind power
風力
beautiful scenery
beginning of spring
bicycles
cartoon
conservation
cycling
earth
earth day
earth hour
electricity
emission reduction
energy saving
environment
environmental protection
festivals
fitness
flowers
girls
grain rain
green
green mountains
illustration
insects
landscape
life
low carbon
nature
plants
protection
public welfare
rain
rivers
solar terms
sports
spring
spring equinox
technology
travel
trees
vitality
windmills
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