機器
arm
bar
barcode
body
cocos
cocos islands
code
computer
concept
confidential
control
crime
data
digital
flag
free
freedom
hand
human
id
identification
identify
identity
information
island
islander
keeling
man
mark
national
no
personal
privacy
protection
registration
risk
safety
secure
security
sign
slave
slavery
system
technology
tracking
work
world
wrist