1
become an adult
通常指达到法定成人年龄。
At 18, you legally become an adult.
18岁时，你在法律上成为成年人。
成年人；大人
adults — plural of adult
先理解核心含义，再看它在真实句子里的用法。
成年人；大人
a person who is fully grown or has reached the legal age of majority
At 18, you legally become an adult.
18岁时，你在法律上成为成年人。
成年动物
An animal that is full-grown.
成年人
a fully developed person from maturity onward
达到法定成年年龄的人
A person who has reached the legal age of majority.
成年动物
any mature animal
As an adult, she has more responsibilities than when she was a child.
作为成年人，她比小时候有更多的责任。
The movie is suitable for adult audiences only.
这部电影只适合成年观众观看。
He became an adult at the age of eighteen.
他在十八岁时成为成年人。
通常指达到法定成人年龄。
At 18, you legally become an adult.
18岁时，你在法律上成为成年人。
表示内容或活动适合成年人。
This movie is for adults only.
这部电影仅限成年人观看。
用于对比童年或强调成年身份。
As an adult, I have to pay bills.
作为成年人，我必须支付账单。
Not this
There are many adult in the room.
Use this
There are many adults in the room.
中文中“成人”没有单复数变化，但英语中 adult 是可数名词，复数需加 -s。
Not this
He is adult.
Use this
He is an adult.
英语中可数名词单数前需要不定冠词 a/an，中文没有这一语法规则。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
成人教育
Many people enroll in adult education to improve their skills.
许多人报名参加成人教育以提升技能。
成年生活
Adult life comes with many responsibilities.
成年生活伴随着许多责任。
成年人口
The adult population of the city has increased.
该市的成年人口有所增加。
负责任的成年人
Every child needs a responsible adult to look after them.
每个孩子都需要一个负责任的成年人照顾他们。
成人监护
Young children should not use the pool without adult supervision.
年幼的孩子在没有成人监护的情况下不应使用游泳池。
做成年人该做的事
I spent the whole weekend adulting — paying bills and cleaning the house.
我整个周末都在做成年人该做的事——付账单和打扫房子。
成人监督
This project needs adult supervision if we want it to succeed.
如果我们希望这个项目成功，就需要成人监督。
含酒精饮料
Would you like an adult beverage with your meal?
您用餐时想喝点含酒精的饮料吗？
Use adults naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆：成年人‘adult’音似‘阿大特’，‘阿大’是哥哥，哥哥已是成年人。
中性
The words 'result', 'insult', 'consult', 'exult', and 'cult' all end with the stressed syllable /ʌlt/ and rhyme with the pronunciation /əˈdʌlt/ of 'adult'. 'Difficult' ends with /əlt/ and does not rhyme.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.