英文關鍵字
access
accessibility
arrival
authenticate
authentication
authority
authorization
authorized
burglar
business
card
cardkey
closed
code
control
corporation
door
electronic
enter
entrance
entry
equipment
female
finger
hand
hotel
identification
indoors
key
keycard
keyhole
keyless
lock
man
modern
number
office
open
precaution
protection
room
safeguard
safety
secure
security
suit
system
technology
unlock
validation