twenty-first
短语第二十一
发音
US
词形变化
twenty-firsts
复数
twenty-firsts
别名
21st
twentyfirst
XXI
释义与例句
n.
-
1.
The person or thing in the twenty-first position.
-
2.
One of twenty-one equal parts of a whole, usually written ¹⁄₂₁.
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3.
A party to celebrate a twenty-first birthday.
非正式
adj.
-
1.
The ordinal form of the number twenty-one.