1、thirty的中文意思是30的意思。
2、雙語例句:
(1)Only thirty students graduated in Chinese last year.
去年只有三十名學生獲得漢語學士學位。
(2)She thinks nothing of walking thirty miles a day.
她認為一天步行三十英里不足為奇。
(3)Hes described as around thirty years old, six feet tall and of medium build.
他被描述為大約三十歲,身高6英尺,體格中等。