Democratic Senator Christopher Dodd, who leads the Senate Banking Committee, generally supports giving Bernanke another four years, although the two have had disagreements and Dodd is promising a thorough reappointment hearing.

VOA: standard.2009.08.25

Cells share signals with each other, and that leads to activation of a specific cell population if we're thinking about a vaccine that produces antibodies, that leads to activation of B-cells, immature B-cells, which do two things.

细胞与细胞之间存在信号传递,而这将激活特定的细胞群体,如果是一些能够产生抗体的疫苗,抗体将会激活B淋巴细胞,幼B淋巴细胞,使其发生两种变化

耶鲁公开课 - 生物医学工程探索课程节选

Federal agents and local El Paso authorities have targeted the Barrio Azteca gang in this investigation, detaining some two dozen gang members on warrants issued against them for other crimes and also questioning them for leads in the case.

VOA: standard.2010.04.01