英文關鍵字
activity
aggregate
big
close
closeup
construction
digging
dump
excavator
extraction
geology
gravel
ground
heavy
huge
machine
machinery
man
old
output
pours
power
quarrying
sound
stone
tipper
tool
transport
transportation
truck
waiting
yellow
英文關鍵字
activity
aggregate
big
close
closeup
construction
digging
dump
excavator
extraction
geology
gravel
ground
heavy
huge
machine
machinery
man
old
output
pours
power
quarrying
sound
stone
tipper
tool
transport
transportation
truck
waiting
yellow