Wire the thermometers up to trigger off an alarm bell if the temperature drops.

把温度计的电线连接上，当温度下降时，就会触发警报。

《柯林斯英汉双解大词典》

From there, it's up to you to sound the alarm manually.

之后，你可以决定是否手动发出警报。

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Why are we awakened by the rustling sound of bed sheets on some nights, but oversleeping without paying attention to those alarm clocks that wake others up?

为什么我们在某些夜晚会被床单发出的沙沙声吵醒，却没有理会那些吵醒别人的闹钟声而睡过头呢？

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But the sight of workers wearing white protective suits and gloves hauling in tons of oil-contaminated waste - including bags of sandy tar balls, vegetation,used oil booms, rags and other clean-up supplies - has caused alarm among some Gulf coast communities.

VOA: standard.2010.08.05

So, I get up and sometimes I don't set the alarm and I get up late; I stagger out of bed; I wake the kids; I greet the servants; I get ready; I make breakfast.

我起床，有时候忘记调闹钟,结果起床晚了，我从床上踉跄爬起;,我叫醒孩子，跟仆人打招呼，作准备;,做早餐。

耶鲁公开课 - 心理学导论课程节选

Rather than step up the alarm, believers in a global warming crisis need to step up the realism.

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Setting the time and your wake-up alarm has never been easier thanks to Halo 3's auto-sync time and alarms feature.

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How are they supposed to demonstrate their fitness for more responsibility by doing simple things like buying an alarm clock and showing up for work on time every morning?

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