thirties
英 ['θɜːtɪ]
美['θɝti]
	    - n. 三十年代
 - num. 三十
 - adj. 三十个的
 
考试真题
- The children of the study are now adults in their thirties.
 
2016年6月六级真题(第一套)听力 Section C
- The children who had the lowest self-control when they were age three to ten, later on had the most health problems in their thirties, and they had the worst financial situation.
 
2016年6月六级真题(第一套)听力 Section C