求翻译一句话~~英译中~~谢谢
All of which explains why rank-and-file Republicans on Capital Hill -- who haven't forgetten how they used to get clobbered for entertaining even modest Social Security changes -- aren't exactly storming the microphones to pledge their unconditional support for anytjing that could chang the basic outlines of this arrangement.
特别是破折号里面的那句话我看的不是很懂.谢啦.