She's just being childish and immature.

她真是小孩子气，太冒失了。

It's time you put a stop to this childish behaviour.

这种孩子气的行为你该收敛了。

I thought. How childish I was!

我想，我真幼稚啊！

He is like a childish adult.

他就像一个幼稚的成年人。

Don't be childish any more.

别再孩子气啦。

I always use these childish things.

我经常用这些幼稚的东西。

Oh, don't be so childish! Cheer up!

哎呀，别这么孩子气！振作起来！

I'm very childish, am I?

我很幼稚，对不对？

This is really childish.

这真是太幼稚了。

Don't be so childish!

别这么幼稚！

He is a childish man.

他是一个幼稚的男人。

My painting looks childish beside yours.

和你的画相比，我的画显得很幼稚。

Everyone has the happy memory, sad memory and childish memory.

每个人都有开心的记忆，伤心的记忆和幼稚的记忆。

He thinks it's very childish and unprofessional to text message.

他认为发短信很幼稚，很不专业。

No one but Colin himself knew what effect those crossly spoken childish words had on him.

除了科林自己，谁也不知道那些孩子气的气话对他产生了什么影响。

When you are still in college, watch stupid, childish films as much as possible, as the kind of Meteor Garden.

当你还在上大学的时候，尽可能多地看一些愚蠢、幼稚的电影，比如《流星花园》。

I've had enough of her childish stunts.

她那些幼稚的愚蠢行为我受够了。

I won't do anything childish.

我才不会做傻事。

A young couple sitting nearby looked at the 24-year-old's childish behavior with pity.

坐在旁边的一对年轻夫妇同情地看着这位24岁的年轻人的幼稚行为。

Don't be childish. I'm just joking.

别孩子气了嘛，这只不过是开玩笑罢了。

He has a childish smile.

他笑起来很稚嫩。

It doesn't mean that we are childish.

这并不代表我们很幼稚。

My dear child, you're being childish.

我的乖孩子，你在耍小孩儿脾气。

He is being childish.

他在耍小孩子脾气。

Well, this is all about my childish dream.

哦，这都是我稚嫩的梦想。

Childish pleasure can be derived from murmuring "qiezi" when walking past a delegation busy taking pictures.

走过忙着拍照的代表团时，听着他们喊“茄子”就能感受到孩子般的快乐。

It was childish nonsense—the chimera of frazzled ganglia.

那是幼稚的废话——疲倦的神经节的嵌合体。

She derided my effort as childish.

她嘲笑说我的努力很幼稚。

Zina: You're being 1) childish.

吉娜： 你这是在闹小孩子脾气。

Childish, I know.

幼稚，我知道。