英语听力课堂(www.tingclass.net)是公益性质的英语学习网站，您可以在线学习英语听力和英语口语等,请帮助我们多多宣传，谢谢！
suffix informal
used after a number like 20, 30, etc. to refer to the age of a person who is between 20 and 29, 30 and 39 years old, etc., or to a person who is of this age
(用于数字后指年龄或某个年龄段的人)…多岁，…多岁的人
I'd guess she's thirty-something.
我猜她三十多岁。
Most of these places are aimed at twenty-somethings.
这些地方大多数是以二十多岁的人为目标群体的。