Change your infantile habits.

改改你这些幼稚的习惯吧。

I really can't agree with his infantile blathering.

我实在无法认同他那些幼稚的胡话。

He classified autism as a form of infantile psychosis.

他将自闭症归类于一种儿童精神错乱。（《TED 演讲》2015年6月合集）

This kind of humour is infantile and boring.

这种幽默既幼稚又无聊

This kind of humour is infantile and boring.

这种幽默既幼稚又无聊。

In children, assessment of infantile reflexes is also a diagnostic tool, such as the Moro reflex and the Romberg Test.

儿童、婴儿评估反应也是一个诊断工具，如拥抱反射和伯格测试。

Permit me to be infantile by myself.

让我一个人幼稚的待会儿。

I'm tired of her infantile behavior.

我厌倦了她那幼稚的行为。

Pearl was a born outcast of the infantile world.

珠儿生来便是那婴孩天地的弃儿。