We should let the steam off the boiler.

我们应该放掉锅炉里的蒸气。

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But most of the time, arguments are just a way to let off steam when parents have a bad day, don't feel well, or are under a lot of stress - kind of like when you argue with them.

但是大多时候争吵只是一种发泄方式，当父母过了糟糕的一天，感觉不好的一天或者压力很大的一天，就像你和他们争吵时的原因差不多。

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The best family friendly hotels have plenty of safe, spacious grounds where children can let their imaginations run wild as they let off steam before or after a long journey.

好的酒店会有开阔安全的场地供孩子们嬉戏玩耍，让他们在旅行中充分释放想象空间。

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When the Clintons, Mauro and their colleagues needed to let off steam in Austin, the town's traditional watering holes filled the bill, places such as Armadillo Headquarters and the century-old Scholz Garten -- a German beer garden with an outdoor patio set under spreading oaks.

CNN: Clinton tested in Texas, where it all began in '72

So far, although there are lots of e-petitions on Number 10's website, they have mostly just allowed the disgruntled to let off steam.

ECONOMIST: Bagehot

The chamber is air tight so the biogas let off from the little digesters can be captured and used to power the steam generator that run the stills.

FORBES: DONQ: LEADING LIQUOR TO SUSTAINABILITY