英文關鍵字
billhook
blade
circular
cut
equipment
factory
grind
grinder
grinds
hand
his
huge
industrial
industry
iron
knife
machine
man
manual
manufacture
manufacturing
metal
millstone
old
rotating
sharpening
steel
tool
while
work
worker
workshop
英文關鍵字
billhook
blade
circular
cut
equipment
factory
grind
grinder
grinds
hand
his
huge
industrial
industry
iron
knife
machine
man
manual
manufacture
manufacturing
metal
millstone
old
rotating
sharpening
steel
tool
while
work
worker
workshop