UC知道He went to college in the 90s,when he was already in his sixties/////这里为什么要用Sixties
来源：百度知道 编辑：UC知道 时间：2024/05/15 11:14:05
说仔细一点
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。
when he was already in his sixties
他已经是60多岁了.
是指模糊的数字,非准确的60岁
in+one's+数词复数
表在某人多大年纪的时候
60多岁
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