英文關鍵字
2019ncov
antibacterial
antiseptic
blue
bottle
chalkboard
clean
cleaning
cleanser
coronavirus
covid19
cropped
detergent
disinfectant
disinfection
footage
hand
hands
health
healthcare
hygiene
hygienic
liquid
man
open
pandemic
partial
prevention
quarantine
rag
sanitary
sanitizer
signboard
signs
spray
surface
symbols
texture
textured
video
virus
wall
white
wood
wooden
word