I set my countdown timer alarm for 30 minutes right when I lie down.

每次我按下30分钟倒数计时器闹铃，然后就躺下。

youdao

Today I began setting my nap countdown timer for 25 minutes instead of 30 minutes.

我尝试了25分钟倒计时闹铃，而不是30分钟的。

youdao

Set a timer (use a kitchen timer, or use a countdown timer on your computer), and plug away at your work.

设定一个计时器(用厨房的计时器或是电脑上的倒数计时器)，然后专心做事。

youdao

The movement offers a couple of timezones, a chronograph, calendar, alarms, and a countdown timer.

FORBES: The Coolest Digital Watch Around?

As for the front-facer, we're told that in addition to its higher resolution it's also able to make smarter auto-adjustments to white balance and other settings, and it comes with a countdown timer so you can give display just the right amount of pout.

ENGADGET: HTC shows off One X+ in the UK, we go hands-on (video) Mobile