1、英语三十的单词：thirty，英 [?θ??ti] 美 [?θ??rti]。
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.