英文關鍵字
60
alarm
animation
arrow
background
begin
black
business
chronometer
clock
closeup
count
countdown
deadline
device
digital
display
electronic
end
hour
lcd
led
light
macro
minute
motion
number
numbers
numerals
phone
running
screen
second
seconds
sixty
speed
sport
start
static
stop
stopwatch
symbol
technology
time
timer
watch
white