倒计时器；一种从预设时间开始倒数至零的计时设备
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倒计时器；一种从预设时间开始倒数至零的计时设备；倒计时器；一种从预设时间开始倒数至零的计时设备
a device that measures the time remaining until a set zero point, typically counting downwards
She set the countdown timer for ten minutes before putting the cake in the oven.
她把倒计时器设为十分钟,然后把蛋糕放进烤箱。
倒计时器；一种从预设时间开始倒数至零的计时设备
a device that measures the time remaining until a set zero point, typically counting downwards
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