也可表达为:in one's twenties/20s。例句:They're both in their twenties and both married with children of their own.
视频2.2.元音字母组合ai, ay, ea, ey读/ei /的单词（20个）a.gain / E5gein / ad. 再；又,al.ways / 5C:lweiz / ad. 总是, 始终,birth.day / 5bE:Wdei / n.
闽教版英语3-6年级下册全部单词birthday [ˈbɜːθˌdeɪ] 生日buy [baɪ] 买present [ˈprɛzənt] 礼物for you [fɔː(r) ju] 给你card [kɑːd]贺卡what about ……[wɒt əˈbaʊt]怎么样（用于征求意
