15秒のカウントダウンタイマーのアニメーション縦長ビデオ（黒背景）
Palabras clave
15,
second,
countdown,
timer,
animation,
motion picture,
black,
background,
figure,
video,
start,
starting,
number,
count,
business,
graphic,
countdown,
time,
opening,
time,
yen,
chart,
pie chart,
save,
download,
wait,
datum,
character,
number,
display,
bar,
film,
stopwatch,
white,
diminish,
communication,
percent,
watch,
spinning,
proceed,
material,
motion
