纪都在十几岁。

　　Jane is only in her early forties. 简才刚刚四十出头。

　　She was in her mid-twenties. 她有二十五、六岁。

　　He was then in his late seventies. 他当时已经快八十岁了。

　　5. in the 1960s (in the 1960s) 二十世纪六十年代