num. 二十一, 二十一个
n. 二十一, 二十一个, 二十一点牌戏
n. the cardinal number that is the sum of twenty and one
s. being one more than twenty
词型变化:名词复数形式 : twenty-ones

twenty-one的用法和样例:

例句

用作数词(num.)
  1. Oh, I wish to goodness I were twenty one.嗨,我要是二十一岁就好了。
  2. Next monday is my birthday of twenty first.下星期一是我二十一岁的生日。
【近义词】
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