1、英语三十的单词：thirty，英 [ˈθɜːti] 美 [ˈθɜːrti]。

2、她认为一天步行三十英里不足为奇。She thinks nothing of walking thirty miles a day.

3、去年只有三十名学生获得汉语学士学位。Only thirty students graduated in Chinese last year.

4、她快三十岁时才结婚。She married in her late twenties.