政治活动家

例句：

1. 1. He is a well-known politician in his community.
   他在社区里是一位知名的政治家。
2. 2. The politician's speech was widely criticized.
   这位政治家的演讲受到了广泛的批评。
3. 3.As a politician, he has made significant contributions to the country's development.
   作为一名政治家，他为该国的发展做出了重大贡献。