twenty 英[ˈtwenti] 美[ˈtwɛnti, ˈtwʌn-] n. 二十，二十个; 二十多岁; 二十年代; 许多，大量; num. 二十; adj. 二十的; [例句]They're both in their twenties and both married with children of their own.他们俩都二十几岁，都已经结婚生子了。[其他] 复数：twenties。