By 1922 many traffic signals were being automated on timers.

到1922年，许多交通信号灯有了倒计时。

Set the timer on your phone for 90 seconds.

在您的手机上设定90秒的计时器。

I also want to put a timer on our indoor lights and a better deadbolt for the front door.

马丁：我还想在我们的室内灯上安装一个计时器，并为前门安装一个更好的锁舌。

Like, maybe, in your morning rush to get ready for school or work, you cranked the timer on your toaster too far, and your bread popped out all black and crispy.

比如，手忙脚乱的准备上学或上班的早晨，你给烤面包机设的时间太久了，烤出来的面包又黑又硬。