Several recent polls show Obama leading Hillary Clinton by a double-digit margin less than a week after the one-time front runner came in a disappointing third in the Iowa caucuses.

近期一些民调显示，继昔日领先者希拉里在爱荷华州党内预选屈居第三后的短短几天，奥巴马以双位数的支持率领先希拉里。

youdao

Strangely, if presented with one number at a time, at one digit per second, Lu's recall is no better than the average person's, Ercisson and colleagues found.

CNN: On Pi Day, finding strength in numbers

More important, he has a double-digit lead in New Hampshire over John Kerry, the one-time front-runner, and is in a close race with Mr Gephardt in Iowa.

ECONOMIST: Howard Dean

Excluding these one-time events, the company said ad revenue would have grown in the "low single digit" percentages.

WSJ: CBS' Moonves dismisses Aereo as 1Q earns top views