in his thirties 在他三十多岁时
the 1930s 20世纪30年代
early thirties 三十岁出头
mid-thirties 三十岁左右
late thirties 三十岁后期
A: Is your brother still in his twenties?
A：你哥哥还在二十多岁吗？
B: No, he is in his thirties now.
B：不，他现在三十多岁了。
1) 指年龄在30-39岁之间
2) 指一个世纪中的第30-39年
3) 指数字30到39
1. 三十多岁；三十年代
noun
1. The period of time from the year 30 to 39 of a century, or the ages between 30 and
39.