英文關鍵字
bulldozer
cat
cold
equipment
industry
machine
mountains
night
outdoor
power
preparation
season
ski
sky
slope
snow
snowcat
snowy
technology
tractor
winter
work
working
英文關鍵字
bulldozer
cat
cold
equipment
industry
machine
mountains
night
outdoor
power
preparation
season
ski
sky
slope
snow
snowcat
snowy
technology
tractor
winter
work
working