他们的看法是，他在政治上曾是幼稚的。

Their view was that he had been politically naive.

《柯林斯英汉双解大词典》

想当然的认为他们会欢迎我们的是非常的幼稚。

It is naive to ever believe they will welcome or appreciate our presence.

youdao

他们对他说，哭是幼稚的。

They told him it was babyish to cry.

youdao

毕竟他们还很幼稚，他们的主要任务是为了美好的前途而努力。

After all, they are not old enough and their main responsibility is to study hard in order to have a bright future.

youdao

毕竟他们还很幼稚，他们的主要任务是为了美好的前途而努力。

After all, they are not old enough and their main responsibility is to study hard in order to have a bright future.

youdao