英文關鍵字
2019
advocacy
aerosol
air
antibacterial
antihacker
antiviral
concept
coronavirus
covid19
defocused
doctor
drawdown
epidemic
fly
foot
grade
having
health
impact
indoor
intact
irrational
look
man
mask
medical
n1h1
paint
plague
protect
protection
protective
respirator
safety
scientist
single
spray
stress
threatened
tiresome
too
virologist
virus
wearing
worker