“幼稚的”造句

我对自己写出这么幼稚的东西感到羞愧。
I'm ashamed of the babyish nonsense I write.

我们终于对他幼稚的行为忍无可忍.
We eventually ran out of patience with his childish behaviour.

像那样幼稚的想法可以一笑置之.
A childish idea like that can be amusedly tolerated.