英文關鍵字
alcohol
anti
applying
bacteria
balustrade
banister
bottle
care
clean
cleaner
cleaning
close
coronavirus
covid
covid19
disease
epidemic
germ
hand
handrail
health
healthcare
hygiene
hygienic
infection
liquid
maid
motion
office
people
person
prevention
preventive
protect
protection
railing
sanitizer
sanitizing
slow
slowmotion
spray
sprayer
spraying
spread
spreading
stainless
stair
staircase
stairway
stanless
steel
virus
woman