| 单词 | twenty-one |
| 释义 | twenty-one twenty-one, 21 n: (cardinal number: 21) (基数) SC 二十一，21 èr shí yī Twenty-one comes before twenty-two. 二十一后跟着二十二。 twenty-one, 21 adj: (21 in number) SC 二十一（个）的 èr shí yī gè de Yesterday I saw twenty-one birds in the tree in my backyard. twenty-one, 21 adj: (21 years of age) SC 二十一岁的 èr shí yī suì de In many states of the US, you must be twenty-one to buy alcohol. 在美国的许多州，你必须年满二十一岁，才能购买酒精饮品。 twenty-one, 21 pron: (people, things: 21 of them) SC 21 人 SC 21 个 Twenty-one of the thirty positions have already been filled. 30个名额中已有21个被占。 21 n: US, written (twenty-first day of specified month) (日期) SC 21 日，21 号 The heads of state are meeting to discuss this issue on March 21. 21 n: mainly UK, written (twenty-first day of specified month) (日期) SC 21 日，21 号 I finish work on 21 December and will be on holiday for two weeks. |
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