英文關鍵字
abandoned
adult
buildings
day
destroyed
engineer
hard
hat
helmet
industry
man
men
near
occupation
one
people
production
professional
protection
safety
site
skill
smartphone
tablet
talking
the
uniform
vest
winter
with
work
英文關鍵字
abandoned
adult
buildings
day
destroyed
engineer
hard
hat
helmet
industry
man
men
near
occupation
one
people
production
professional
protection
safety
site
skill
smartphone
tablet
talking
the
uniform
vest
winter
with
work