He went to college in the 90s,when he was already in his sixties/_英语解答

He went to college in the 90s,when he was already in his sixties/////这里为什么要用Sixties
说仔细一点

人气：310 ℃　时间：2020-04-06 14:28:28

解答

他在90年代上了大学,那时候他已经60对岁了.
in one's 数次复数表示在某人多少岁多的时候
例如说,in my twenties在我20多岁的时候表示20-30之间.