英文關鍵字
alarm
alert
appointment
arrow
background
bell
business
circle
clock
closeup
concept
countdown
counter
day
deadline
dial
face
hour
indoors
late
lunch
measure
measurement
midnight
minute
modern
new
nobody
noon
number
object
office
pointer
precise
reminder
ring
round
schedule
second
sign
speed
start
symbol
ticking
time
timer
urgent
wall
watch
white