英文關鍵字
amphibole
analyzes
asbestos
assistant
background
ban
beauty
blue
breath
caucasian
chrysotile
coat
danger
dust
examination
fiber
form
girl
gloves
hands
harm
her
his
illness
lab
laboratory
lungs
mask
minerals
organs
person
practice
profession
protection
protective
puts
respiratory
rubber
sample
staff
stones
technician
white
woman
work
worker
young