英文關鍵字
circle
clock
closeup
countdown
counter
course
device
dial
digit
digital
diode
display
electric
electrical
electronic
equipment
face
footage
graphic
horologe
hour
icon
lapse
led
light
minute
minutes
modern
monitor
number
numbers
passing
round
second
seconds
show
sign
starting
stock
stopwatch
stream
symbol
time
timekeeper
timepiece
timer
video
watch