The term "glass ceiling" is often used to describe an unseen barrier that stops women and minorities from moving up in their careers.

“玻璃天花板”这个术语经常用来形容阻止女性和少数族裔在职业生涯上升的无形屏障。

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Looking back, the day was full of beautiful light and shade, the memory of the barrier, the sound has been moving away from the heart.

回首往事，日子中竟全是斑斓的光影，记忆的屏障中，曾经心动的声音已渐渐远去。

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Product valve and filling head moving parts are protected by steam barrier. The filling chamber is sterilized by steam.

产品阀门及灌装头运动部件采用蒸汽屏障保护，灌装室采用蒸汽杀菌。

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"We have an electrical barrier in place that we are confident will keep them from moving en masse into the Great Lakes.

VOA: standard.2010.07.20

It's not unprecedented, and there's no current threat to water supplies, but officials are prepared to start building an underwater barrier to block the denser saltwater from moving further upstream, Corps spokesman Ricky Boyett said Friday.

CNN: U.S. drought biggest since 1956, climate agency says

Admiral Allen announced yesterday, for example, that, after a bunch of back-and-forth between state and federal experts, he is prepared to authorize moving forward with a portion of the idea for a barrier island that may stop some of the oil from coming ashore.

WHITEHOUSE: President Obama Assesses BP Oil Spill Response