adult

1. adult

形容词

1. 成年的
中文释义：指身体或心理已经发育成熟的人。
英文释义：Relating to a person who is fully grown or developed physically or mentally.
例句：
1. She became an adult at the age of 18.（她18岁时成年。）
2. The movie is only suitable for adult audiences.（这部电影只适合成年观众。）

名词

1. 成年人
中文释义：指身体或心理已经发育成熟的人。
英文释义：A person who is fully grown or developed physically or mentally.
例句：
1. The park is open to adults only.（该公园只对成年人开放。）
2. It is important for adults to set a good example for children.（成年人为儿童树立榜样很重要。）

词语辨析

“adult”和“grown-up”都可以用来表示成年人，没有实质性的区别。但“adult”更常用于正式或学术场合，而“grown-up”更常用于口语或非正式场合。

词汇扩充

1. adulthood：成年期
2. adulting：成年人的责任和行为
3. adult education：成人教育
4. adult entertainment：成人娱乐
5. adult content：成人内容

近义词

• grown-up
• mature
• full-grown

反义词

• child
• minor
• underage

2. 柯林斯词典

Collins Dictionary：
1. An adult is a fully grown person or animal.
2. Adult education is the education of adults in schools and colleges.
3. If you describe something as adult, you mean that it is suitable for adults, rather than for children.
4. If you talk about adult subjects or language, you mean topics or words relating to sex or to other things that only adults are allowed to deal with or use.

3. 牛津词典

Oxford Dictionary：
1. A person who is fully grown or developed.
2. A person who is legally responsible for their actions.
3. (of a book, movie, etc.) Designed for or suitable for adult readers, viewers, or players.
4. Of or for adult people.

4. 用法

“adult”作为形容词时，修饰名词，表示成年的；作为名词时，指成年人。
例句：
1. She is an adult now.（她现在已经长大了。）
2. This movie is for adults only.（这部电影仅限成年人观看。）

5. 相关例句

1. He's legally an adult, but he still acts like a child.（他在法律上是成年人了，但他仍然像个孩子一样行为。）
2. As an adult, you have to take responsibility for your own actions.（作为一个成年人，你必须对自己的行为负责。）
3. She enjoys reading adult novels in her free time.（她在闲暇时间喜欢读成人小说。）
4. Adults should set a good example for children.（成年人应该为孩子树立榜样。）
5. She had to make adult decisions about her future.（她不得不为自己的未来做出成年人的决定。）
6. He is still a child at heart, even though he is an adult.（尽管他已经成年，但他内心仍然是个孩子。）
7. Adult supervision is required for this activity.（这项活动需要成人监督。）
8. They attended an adult education class to improve their skills.（他们参加成人教育班以提高自己的技能。）
9. She enjoys the freedom that comes with being an adult.（她享受成年带来的自由。）
10. She acted in an adult manner and handled the situation calmly.（她以成年人的方式行事，并冷静地处理了这个情况。）
11. Adults should respect the opinions and choices of younger generations.（成年人应该尊重年轻一代的意见和选择。）
12. They offer adult courses in various subjects.（他们提供各种科目的成人课程。）
13. She is an adult now and can make her own decisions.（她现在已经成年，可以自行决策了。）
14. He enjoys watching adult movies in his private time.（他在个人时间里喜欢看成人电影。）
15. She felt a sense of relief when she became an adult.（当她成年时，她感到一种解脱感。）
16. Adult cats are usually more independent than kittens.（成年猫通常比小猫更独立。）
17. He has the body of an adult but the mind of a child.（他的身体已经成年，但心智还像个孩子。）
18. Adults are responsible for ensuring the safety of children.（成年人有责任确保孩子的安全。）
19. She is an adult now and can take care of herself.（她现在已经是个成年人，可以照顾好自己了。）
20. He is an adult in years, but still acts like a teenager.（他虽然年龄已经成年，但行为仍然像个十几岁的孩子。）