世纪的第四个十年(如1830年代、1930年代、2030年代等)。
先理解核心含义，再看它在真实句子里的用法。
世纪的第四个十年(如1830年代、1930年代、2030年代等)。；人生中从30岁到39岁的十年。；30至39的区间。；三十( thirty的名词复数 ); 三十个; 三十年代; <网>一局中一方获得的第二分
The fourth decade of a century: the 1830s, 1930s, 2030s, etc.
Prepare the learner guide for this word
可生成：语法 Grammar、学习解释 Learner guide、例句 Examples。只有点击后才会开始生成。
世纪的第四个十年(如1830年代、1930年代、2030年代等)。
The fourth decade of a century: the 1830s, 1930s, 2030s, etc.
人生中从30岁到39岁的十年。
The decade of one's life from age 30 through age 39.
30至39的区间。
The range between 30 and 39.
Choose the next layer that will help you use thirties with more confidence.
Recommended next
Includes Usage patterns & Collocations
Learn how to use this word with grammar patterns and natural collocations.
Includes Common mistakes & Confusing words
See typical errors learners make and confusing words to avoid.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
Use thirties naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Dictionary facts from ECDICT, WIKTIONARY.