英文關鍵字
3840x2160
action
ancient
antique
background
black
business
checking
clock
close
closeup
concept
countdown
counting
crystal
deadline
equipment
flow
flowing
green
heap
hour
ideas
instrument
isolated
macro
measure
measurement
measuring
minute
motion
objects
past
patience
retro
running
sand
seconds
space
symbol
time
timepiece
timer
transparent
vintage
watch
white
wood