英文關鍵字
analysis
awareness
background
bacteria
badge
ban
brainstorming
business
businessmen
businesswomen
care
communication
contact
corona
coronavirus
countries
decor
design
different
dirty
disease
element
flu
funny
germ
graphic
hand
handshake
health
icon
ideas
illustration
infection
mask
office
people
prevention
protect
red
risk
security
shake
shape
shield
sign
spread
stop
strategy
team
teamwork
tradition
vector
virus
warning
world
worlds