名詞 twentieth:

1. position 20 in a countable series of things

形容詞 twentieth:

1. coming next after the nineteenth in position
   同義詞：20th

1. A set of24 or sometimes25 sheets of paper of the same size and stock; one twentieth of a ream.
   紙的一刀一套24張或有時25張同樣尺寸和種類的紙張; 一令紙的十二分之一
2. David and I are going to be married on Friday morning, June the twentieth.
   我和戴維已定于6月20日(星期五)上午結(jié)婚。
3. That's the twentieth goal he's kicked this season.
   這是他本賽季踢進的第二十個球。
4. He was the twentieth in the competition.
   他在競賽中名列第二十。