adult
- n.成人;(法律上指能为自己的行为负责的)成年人;成年动物
- adj.(智力、思想、行为)成熟的，成人的;成年的;发育成熟的;仅限成人的(因有色情或暴力内容)
复数： adults
adultnoun
（法律上指能为自己的行为负责的）成年人
a fully grown person who is legally responsible for their actions
Children must be accompanied by an adult.
儿童必须要有大人陪同。
Why can't you two act like civilized adults?
你们俩为什么就不能像有教养的成年人那样行事呢？
成年动物
a fully grown animal
The fish return to the river as adults in order to breed.
这种鱼长成以后回到河中产卵。
adj.
成年的；发育成熟的
fully grown or developed
preparing young people for adult life
指导年轻人做好进入成年期的准备
the adult population
成年人口
adult monkeys
长成的猴子
（智力、思想、行为）成熟的，成人的
behaving in an intelligent and responsible way; typical of what is expected of an adult
When my parents split up, it was all very adult and open.
我父母离异时，事情处理得很成熟、很开放。
仅限成人的（因有色情或暴力内容）
intended for adults only, because it is about sex or contains violence
an adult movie
仅供成人观看的电影
adult
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1
N-COUNT （法律意义上的）成年人
An adult is a mature, fully developed person. An adult has reached the age when they are legally responsible for their actions.Becoming a father signified that he was now an adult...
当了父亲意味着他已是个成年人了。
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2
N-COUNT 成年动物
An adult is a fully developed animal....a pair of adult birds.
一对成年鸟
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3
ADJ 成年的；属于成人的
Adult means relating to the time when you are an adult, or typical of adult people.I've lived most of my adult life in London.
我成年之后的大部分时间都是在伦敦度过的。
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4
ADJ-GRADED 成熟的；老成的
If you say that someone is adult about something, you think that they act in a mature, intelligent way, especially when faced with a difficult situation.We were very adult about it. We discussed it rationally over a drink.
在这件事上我们表现得很成熟。我们一边喝酒一边心平气和地谈了谈。
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5
ADJ （涉及性内容的电影或书籍）仅限于成人的
You can describe things such as films or books as adult when they deal with sex in a very clear and open way....an adult movie.
成人电影
noun
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1
- any mature animal
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2
- a fully developed person from maturity onward
- Synonym: grownup
adj
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1
- (of animals) fully developed
- an adult animal
- a grown woman
- Synonym: big full-grown fully grown grown grownup
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2
- designed to arouse lust
- pornographic films and magazines
- adult movies
- Synonym: pornographic
数据来源：WordNet
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Children must use an approved child restraint or adult seat belt .
儿童必须使用经过认可的儿童安全带或成人座椅安全带。
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It is no longer desirable for adult children to live with their parents .
孩子长大成人后便不再想与父母住在一起了。
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The new law makes no distinction between adults and children .
这项新法律对成人和孩子同等对待。
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She had invested all her adult life in the relationship .
她把成年后的时间全用于维护那一关系。
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Why can 't you two act like civilized adults ?
你们俩为什么就不能像有教养的成年人那样行事呢？
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There are reductions for children sharing a room with two adults .
孩子和两个大人合住一间房可以打折。
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Children must be accompanied by an adult .
儿童必须要有大人陪同。
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The fish return to the river as adults in order to breed .
这种鱼长成以后回到河中产卵。
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The language of teenagers is often completely inaccessible to adults .
青少年的语言成人往往听不懂。
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Children are admitted only if accompanied by an adult .
儿童必须有成年人陪同方可入场。
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When my parents split up , it was all very adult and open .
我父母离异时，事情处理得很成熟、很开放。
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Through play , children act out in miniature the dramas of adult life .
通过游戏，孩子们演出了成年人生活的缩影。
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As she rightly pointed out the illness can affect adults as well as children .
她说得对，这种病不仅影响儿童，也会影响成年人。
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Adult behaviour is often patterned by childhood experiences .
成年人的行为模式往往是童年经历造成的。
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Each ticket admits one adult .
每张票只准许一位成人入场。
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I tried to understand the adult world and could not .
我试着去了解成人世界，却无法猜透。
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There are qualitative differences in the way children and adults think
孩子和成年人的思维方式有质的不同。
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Many adults still depend on their children to work the video .
很多成年人仍然要靠孩子来操作录像机。
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Children under 14 must be accompanied by an adult .
14岁以下的儿童必须由成人陪同。
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She was very sympathetic to the problems of adult students
她对成年学生的问题深表同情。
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I 've lived most of my adult life in London .
我成年之后的大部分时间都是在伦敦度过的。
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The adult to child ratio is 1 to 6 .
成人与儿童的比例为1比6。
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Adults need to live their own lives and that 's difficult with children .
大人需要过他们自己的生活，但有了孩子就很难做到了。
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The average adult man burns 1,500 to 2,000 calories per day
普通成年男子每天消耗的热量为1,500到2,000卡路里。
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The company has targeted adults as its primary customers .
这家公司将成年人作为其主要顾客。
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One rule specifies that learner drivers must be supervised by adults
一条规则明确规定，见习驾驶员必须有成人的监督。
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His adult life mirrored the downward course of his father 's life .
他成年后的生活反映出了他父亲的生活在走下坡路。
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One in five young adults was struggling with everyday mathematics * 1 / 5
的年轻人做日常的数学计算都费劲。
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Eventually your child will leave home to lead her own life as a fully independent adult
最后，你的孩子会离开家，作为一个完全独立的成年人过她自己的生活。
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Most adult education centres offer computing courses .
大多数成教中心都设有计算机课程。
指人或动植物发育成熟的；通常也指小孩或年轻人在性格、情感方面趋于成熟、明白事理的。
She is tall and more physically mature than many girls of her years.
她个子很高，而且比很多同龄女孩发育成熟。
There are several mature apple trees in her garden.
她的花园里有几棵成熟的苹果树。
When is the human brain fully mature?
人的大脑何时完全发育成熟？
That young man is very mature for his age.
那个年轻人就他的年龄来说算是很成熟的。
指人或动物生理上发育成熟的，只作定语；也指待人接物具有成年人特点的。
This is an adult tiger.
这是一只成年的老虎。
He spent most of his adult life in Paris.
他成年后的大部分时间是在巴黎度过的。
She dealt with this problem in an adult way.
她以成人的方式处理这个问题。
指已长成大人的，或外表举止像成年人的。
Most American children will leave home after they are grown-up.
多数美国孩子长成大人后会离家而去。
He looked so grown-up in his business suit.
他穿上西装看起来成熟多了。
多指水果、蔬菜等成熟的，也可引申指时机成熟的。
Don't pick those apples until they are ripe.
那些苹果没熟之前不要摘。
They decided to wait until the time was ripe.
他们决定等到时机成熟再说。