Gary Nabel of the U.S. Vaccine Research Center points out that his universal flu vaccine would have another benefit.

VOA: standard.2010.07.21

edged the Lady out as the center of the entire work.

使小姐逐渐丧失了力量。

耶鲁公开课 - 弥尔顿课程节选

She and the Chevy seemed parked at the center of an odd religious instant, as if on some other frequency, or out of the eye of some whirlwind rotating too slow for her heated skin even to feel the centrifugal coolness of words were being spoken.

她和她的雪佛兰车，似乎停在了,一个宗教瞬间的中心，就像在其他的频率上，又像是离开了旋风的风眼,风转的如此之慢，以至于她灼热的皮肤,感觉不到言语带来的，离心般的寒冷。

耶鲁公开课 - 1945年后的美国小说课程节选

Researchers at the Denver Health Medical Center set out to evaluate the effectiveness of this kind of testing.

VOA: standard.2010.07.23

Residents are being forced out of the historic center as they search for cheaper housing and easier living conditions on the mainland.

VOA: standard.2009.11.14

As news got out, hundreds of fans converged on the medical center.

VOA: standard.2009.06.26

But John VandeBerg of the Southwest National Primate Research Center says if the proposed legislation to phase out medical research on chimpanzees is passed, scientists like him will have to end their work.

VOA: standard.2010.02.16