英文關鍵字
approach
arctic
barren
camera
chill
clarification
detail
detective
direction
examination
foot
footmark
footprint
footstep
freeze
ground
hitchhiker
ice
impression
journey
lead
line
mark
nature
outdoor
path
paw
remnant
retrieval
season
seeker
shade
shoe
slider
snow
snowflake
sole
solving
studying
sunshine
tourism
tourist
tracing
tread
trekking
weather
white
winter
work
zoom