avid

Meanwhile, time after time on other issues -- such as the economic stimulus package, health care and Iraq -- he has tacked to the center, much to the frustration of his most avid supporters.

与此同时，在其他问题上，比如经济刺激计划、医保改革以及伊拉克问题，他不止一次改弦易辙、转向中庸，这让他最热心的支持者感到失望。