英文關鍵字
adult
and
bricks
checking
concrete
construction
day
industry
man
men
mixer
near
occupation
old
one
people
phone
production
professional
protection
safety
scaffolding
site
skill
sorting
summer
talking
uniform
vest
wooden
work
worker
英文關鍵字
adult
and
bricks
checking
concrete
construction
day
industry
man
men
mixer
near
occupation
old
one
people
phone
production
professional
protection
safety
scaffolding
site
skill
sorting
summer
talking
uniform
vest
wooden
work
worker