using more words than are needed to express a meaning, either unintentionally or for emphasis

The prose is often pleonastic in nature. 散文在本质上往往是冗长重复的。

Some pleonastic phrases, such as "tuna fish" or "advance reservation", become part of normal idiom. 像“金枪鱼鱼”或“提前预约”这种同义反复的短语已经变成了日常习语。