Finally, Dad turned off the stove, the pot began to cool and the pressure relief valve sprayed out a cloud of steam.

最后，爸爸关上了炉子，锅开始降温，然后解压阀喷出了一股水汽。

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Seismologists registered an ever increasing number of small earthquakes, fumaroles began to vent, and minor eruptions shot ash and steam out of its crater.

地震学家们发现小地震越来越多，喷气口(fumarole)开始活动，火山口不断有微小的火山灰和水蒸气喷发出来。

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But when Terry returned in 1992 from a six-month 19 stint at a 20 state-of-the-art 21 rehabilitation center in Washington state, his recovery really began to 22 pick up steam.

然而在1992年，当特里结束了在华盛顿州一个顶级的康复中心所进行的六个月疗程后，他开始加速复原。

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This new leg in the housing market, which follows a double-dip in prices, began to pick up steam last summer, Blitzer explained, as the indexes marked two consecutive months of increases and investors began to notice residential real estate could go from a drag to actually supporting economic growth.

FORBES: Housing Markets Will Probably Never Return To Pre-Crisis Levels: Case-Shiller Chair Blitzer

Despite belying their position of 92nd in the FIFA world rankings, Austria began to ran out of steam.

CNN: Ballack thunderbolt puts Germany through

The 2008 date is significant because this was clearly the point that the shift towards support for gay marriage began to really pick up steam.

FORBES: Why Do Polls Show Support For Gay Marriage When State Election Results Reveal Otherwise?