英文關鍵字
247
24x7
assurance
assured
availability
business
button
call
center
communicate
communication
computer
concept
consultant
consulting
contact
customer
digital
finger
fix
free
hand
helpdesk
holding
hour
icon
information
interface
internet
mobile
network
phone
quality
repair
screen
service
smartphone
support
symbol
tech
technical
technology
telephone
template
touch