URL：https://static.vecteezy.com/system/resources/previews/024/233/235/non_2x/clock-countdown-icon-in-flat-style-time-chronometer-illustration-on-white-isolated-background-clock-business-concept-vector.jpg
掲載元：https://www.vecteezy.com/vector-art/24233235-clock-countdown-icon-in-flat-style-time-chronometer-vector-illustration-on-white-isolated-background-clock-business-concept
