英文關鍵字
afraid
antibacterial
antiseptic
antivirus
business
businessman
care
clean
coronavirus
covid19
disease
epidemic
face
fear
flu
hand
health
hygiene
ill
illness
infection
lifestyle
male
man
mask
medical
medicine
office
pandemic
person
prevention
professional
protection
protective
quarantine
respiratory
rules
safe
safety
sterile
suit
virus
work
working
workplace