例如，我想删除反斜杠：
Reuters - Venezuelans turned out early\and in large numbers on Sunday to vote in \a historic referendum\that will either remove left-wing President Hugo Chavez from\office or give him a new mandate to govern for the next two\years.
我已经尝试了
re.sub()str.replace()但是两种方法都返回：
Reuters - Venezuelans turned out earlynd in large numbers on Sunday to vote in historic referendum hat will either remove left-wing President Hugo Chavez from office or give him a new mandate to govern for the next two years.
为什么“and”少了“a”，“a”少了“that”，“that”少了“t”，但是“office”和“years”完好无损？