英文關鍵字
cirrus
wispy
highaltitude
feathery
ice
curly
delicate
veil
hair
icy
streaky
thin
whispy
feather
crystal
formations
streaks
filaments
filamentous
sky
feathers
high
flying
stratus
cumulus
group
layers
patterns
strands
scenic
celestial
natural
fluffy
transparent
meteorology
atmosphere
cirrostratus
cirrocumulus
rolling
wisps
streamers
cloudscape