英文關鍵字
stopwatch
counts
sports
timer
closeup
counting
stopping
counter
watch
macro
seconds
race
second
starts
stops
digital
clocks
stop-watch
stop
clock
sport
track
field
10
times
racing
runs
run
basketball
tennis
football
soccer
hockey
training
trainer
running
detail
players
player
coach
coaching
time
trial
trials
olympics
olympic
lcd