I find his sense of humour rather puerile.

我发现他的幽默感相当傻气

Concert organizers branded the group's actions as puerile.

演唱会举办方谴责了该乐团的幼稚行为。

Profound, or just puerile?

觉得很深刻，还是很幼稚？

The story is simple, even puerile.

故事很简单，甚至有些幼稚。

Puerile as the principle products for sale!

产品以薄利多销为原则进行销售！

The first is a group of puerile men in their mid-20s.

第一个团体是由一群幼稚的二十五六岁的男性组成。