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1·In many countries, it happens on your 18th birthday, but in some parts of the world, you have to do something special to enter the world of grown-ups.

在许多国家，这发生在你18岁生日那天，但在世界的某些地方，你必须做一些特别的事情才能进入成人的世界。

2·Our parents are grown-ups.

我们的父母是成人。

3·They are not grown-ups.

他们不是成年人。

4·Most of us grown-ups are seriously fun-deprived.

我们大多数成年人都严重缺乏乐趣。

5·The annual jab fest for the seasonal flu is already underway, leaving many grown-ups wondering if the annual stick in the arm is right for them.

一年一度的季节性流感疫苗注射已经开始了，让许多成年人开始怀疑每年一次的流感疫苗注射是否适合他们。

6·If you're good you can eat with the grown-ups.

你要是听话就可以跟大人一起吃饭。《牛津词典》

7·Grown-ups usually need 6-8 hours of sleep to keep active.

成年人通常需要6-8小时的睡眠来保持活力。

8·Children usually play this kind of word game better than grown-ups.

孩子们通常比成年人更擅长这种文字游戏。

9·It is not just the young, grown-ups have the same problem.

不仅仅是年轻人，成年人也有同样的问题。

10·They cannot even hold up their own heads without some help from grown-ups.

如果没有大人的帮助，他们甚至连自己的头都抬不起来。

成人

1·Our parents are grown-ups.

我们的父母是成人。