英文關鍵字
airborne
allergen
allergy
bloom
blossom
blowing
borne
botany
breathe
cocksfoot
dactylis
day
field
flower
glomerata
grass
grassland
green
herb
humans
inflorescence
inhale
meadow
motion
nature
nectar
particle
plant
pollen
pollination
shake
slow
source
spring
sunlight
sunny
uncultivated
wild
wind