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英文關鍵字
adversity
anti-virus
blackbackground
bone
challenge
colorimage
computer
concept
connection
copyspace
cutout
danger
dark
defense
difficult
digitalage
frontview
headandshoulders
illustration
illustrationandpainting
information
informationtechnology
internet
laptop
networksecurity
nobody
obstacle
online
prevention
problem
protection
risk
safety
screen
security
shield
skull
skullandcrossbones
solution
surveillance
symbol
technology
unsafe
vertical
virus
vulnerability
wireless
answer
arduous
challenging
color
colour
connecting
connexion
cut-out
dangerous
deceased
defence
defending
demise
difficulty
drawing
dying
graphic
graphicart
graphicdesign
hardship
head
hindrance
idea
ideas
issue
jeopardy
joining
negativespace
nopeople
observation
obstruction
organisation
organizing
pc
perilous
personalcomputer
picture
portablecomputer
result
risk-taking
risking
safeguard
secure
shielding
silhouette
symbolic
vigilance
visualart
watching
whitespace
worldwideweb