grown-up
单词辨析：
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。
相关例句：
We are grown-up now, we can't rely on our parents for support.
我们都长大了，总不能仰给父母一辈吧。
She's not gonna talk to you about grown-up stuff.
她不会和你谈大人的事情的。
I have grown-up children who're doing well.
我的几个孩子已经长大成人并且事业有成。
When I come home, I thought, I would be officially a grown-up.
到那时候我想我才算是真正的长大成人了。
But now he did not feel grown-up at all.
但现在，他不觉得长大了。
Older than me, he had grown-up children who welcomed me as a friend.
他比我年纪大，并且他有一群长大了的孩子他们把我当作朋友一样欢迎我。