thirtyon Basic wordsalso onCEFR Elementary (A2)? Band 1 (BND1)? 三十个的,三十的, 三十,三十个 thirty thirty(adjective) 三十个的,三十的 thirties thirties(noun) 三十年代 thirtieth thirtieth(adjective) 三十分之一的,第三十个的 thirty thirty(number) 三十,三十个 Additional meaning thirty thirty(number) 三十,三十个 Forms adjectivenounnumber thirty thirties thirty thirtieth