Long frustrated by the dearth of makeup in the U. S. for Asian complexions, Susan decided to fill the void.

美国缺少适合亚洲人肤色的化妆品，余素兰为此困恼了很长一段时间之后，决定去填补这一市场空缺。

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S. -born tech workers point out that there is no shortage of U. s. -born employees to fill the roles at many tech companies.

很多美国出生的科技工作者指出，美国出生的雇员足以填补很多科技公司的职位空缺。

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Indeed, the U. S. economy is in some ways becoming a kind of traveling sisterhood: upper-class women leave home and enter the workforce, creating domestic jobs for other women to fill.

事实上，美国经济在某种程度上变为旅游姐妹型经济：上层女性离开家，进入劳动力市场，创造了家庭就业机会，由其他女性来填补。

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Some observers said Mr. Christie could make a grand gesture and appoint Mr. Booker to fill the U.S. Senate seat, long held by a Democrat, but many found that idea fanciful.

WSJ: Senate Odds Reshuffled For Newark Mayor Booker

The seat is up for a May 7 special election after Rep. Tim Scott resigned it upon his appointment to fill the U.S. Senate seat left vacant by Jim DeMint's resignation.

CNN: Mark Sanford: Shamed politician fights for comeback

Two conflicting New Jersey state laws about when to hold a special election to fill a vacant U.S. Senate seat add complexity.

CNN: Lautenberg leaves tricky political question for Christie