Correct or improve the translation of the following Chinese sentences.原文：他的政治生涯在20世纪60年代达到顶点。
译文：His political career reached its peak in 1960s. 【正确答案】：
HIS POLITICAL CAREER REACHED ITS PEAK IN THE 1960S.
【题目解析】：His political career reached its peak in the 1960s. (考点：年代的翻译。)
