英文關鍵字
charge
connecting
low
micro
battery
phone
number
lying
calculate
percentage
charging
charged
smartphone
usb
charger
device
electric
power
energy
supply
numeral
graphic
plug
count
screen
telephone
dial
receiver
table
icon
design
computer
synchronization
background
recharge
adapter
isolated
modern
download
technology
full
cell
symbol
cellular
electronic
concept
cable
web