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(到自以为会得势的地方参加竞选的)外来政客，提包客
If you call someone a carpetbagger, you disapprove of them because they are trying to become a politician in an area which is not their home, simply because they think they are more likely to succeed there.
例句
He had come to Washington, not as a common carpetbagger, but a man well known.
他来到华盛顿时，不是以寻常的外来政客的身份,而是作为一位名人。