英文關鍵字
acute
and
background
bacterium
blue
body
breath
breathing
care
catastrophe
chemical
clinic
close
closed
cold
cotton
coughing
cut
danger
disaster
disease
disposable
doctor
dust
ecological
epidemic
equipment
exam
exercise
face
filtration
flu
guarding
healthcare
hospital
human
hygiene
illness
individuality
infection
infectious
issues
mask
material
medical
medicine
nurse
occupation
out
part
people
pollution
professional
protection
radioactive
respiratory
safety
science
social
sudden
surgery
surgical
syndrome
textile
uniform
vapor
virus
white