英文關鍵字
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bacteria
bag
bin
biohazard
biology
blood
blue
care
clean
concept
danger
dangerous
dirty
disposable
disposal
dispose
dustbin
environment
equipment
far
floating
garbage
gauze
glove
gloves
health
healthcare
hospital
infect
infection
infectious
isolated
keep
lab
mask
medical
medicine
plastic
pollution
portrait
red
research
risk
rubber
rubbish
safety
sea
stained
surface
throwing
tool
trash
unclean
waste
water
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