adult

柯林斯词典

1. N-COUNT An adult is a mature, fully developed person. An adult has reached the age when they are legally responsible for their actions. 成年人
Becoming a father signified that he was now an adult. 成为一名父亲意味着他现在是一个成年人了。
2. N-COUNT An adult is a fully developed animal. 成年动物
...a pair of adult birds. …一对成鸟。
3. ADJ Adult means relating to the time when you are an adult, or typical of adult people. 成年人的[ADJ n]
I've lived most of my adult life in Arizona. 我已在亚利桑那州度过了我大部分的成年生活。
4. ADJ You can describe things such as films or books as adult when they deal with sex in a very clear and open way. (电影、书籍等) 只适合成人的
...an adult film. …一部成人电影。

The school rules state that no child shall be allowed out of the school during the day , unless accompanied by an adult.
The magazine is aimed at teenagers and young adults.
There will be two adults travelling , plus three children .
Let's stay calm and try to behave like responsible adults.
If you think of these children growing into adults who enjoy and appreciate classical music , then that repays our effort .