二十一英语怎么写

Twenty-One in English:

Twenty-One is the number that comes after twenty and before twenty-two. It is written as "twenty-one" in English.

In mathematics, twenty-one is an odd number, which means it cannot be divided evenly by 2. It is the sum of ten and eleven or the difference between twenty-two and one.

Twenty-one is also an important age milestone for many people. In some countries, it marks the legal age of **hood, allowing individuals to vote, drink alcohol, or enter into certain legal contracts. It is often celebrated with parties or special activities.

In the game of blackjack, twenty-one is the winning hand. Players aim to reach a hand value of twenty-one without going over, or "busting". It is a popular card game played in casinos and among friends for entertainment.

In literature and popular culture, twenty-one can hold symbolic or significant meaning. It is often associated with coming of age, maturity, or taking on new responsibilities. In books and movies, characters may find themselves at a crossroads or facing important decisions at the age of twenty-one.

Overall, twenty-one is a number that holds various meanings and significance in different contexts. It represents a transition, a milestone, or a winning hand, depending on the situation.

除此之外，还有：

Twenty-one is written as "twenty-one" in English.