Keyssar uses these differential rates to help explain a phenomenon that has puzzled historians—the startlingly high rate of geographical mobility in the nineteenth-century United States.

Keyssar 利用这些不同的比率来帮助解释一个让历史学家困惑的现象——19世纪美国惊人的高地域流动性。

youdao

Due to their high mobility, only 5% (56/1081) of registered women were encountered twice.

由于流动性高,仅有5%(56/1081)的登记妇女遇到两次。

youdao

The rich are not a class yet because there is still very high mobility both up and down.

富人不是一个阶层，因为还存在频率很高的上下迁移。

youdao

The story really begins in Iraq several years ago, when insurgents first began using home-made roadside bombs against the High-Mobility Multipurpose Wheeled Vehicle, or Humvee,the main vehicle the troops were using.

VOA: standard.2009.11.02

Qualcomm smashed analyst estimates, benefitting from the floodtide of demand in the high-mobility (smartphone and tablet) segment.

FORBES: Parsing The 2Q11 Tech Earnings Results

Apple proves the point that a computer company can become a high-mobility company.

FORBES: The PC Industry Is Digging Its Own Grave

Next down is the Snapdragon S4 Pro, which covers the performance end of the high-mobility space, including thin notebooks, tablets, and high-end smartphones.

FORBES: Qualcomm Segments Chips To Hit More Markets