英文關鍵字
calculation
optimal
stock
line
symbol
outline
chain
management
system
linear
contour
background
lined
online
entrepreneur
monitoring
opportunities
manage
business
service
integration
mechanical
performance
complex
optimize
process
product
quality
technical
document
monitor
diagnostics
research
monochrome
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
black