Childish is a term usually used pejoratively, to describe things that should be put away at the age of maturity.

幼稚是一个通常含有贬义的词，用来描述那些在成熟的年龄段应该被收起来的东西。

The phrase has always been used a little pejoratively and even facetiously by the lower classes.

这个短语一直被下层阶级用来贬义甚至开玩笑。

The avoidant lover, for their part, stays relatively quiet but in their more fed-up moments, complains that the anxious party is far too demanding, possibly 'mad' and, as they put it pejoratively, 'needy'.

回避方则相对沉默安静些，但是当他们受不了时，会抱怨焦虑方要求太高，简直“疯了”，用他们带贬义的话说就是太“黏人”。