英文關鍵字
file
password
line
symbol
outline
ssh
sftp
transfer
protocol
security
data
information
network
folder
linear
contour
background
lined
bug
virus
binary
electronics
filtration
research
wall
padlock
key
protected
safe
certified
technology
remote
monochrome
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
black