n.童年；幼年
I have only misty memories of my early childhood. 我对自己的童年只剩一些模糊的记忆。
Childhood is a period of rapid growth. 幼年是生长迅速的时期。
I had known him from his childhood. 我从他幼年起就认识他。
childhood一般不用复数形式,有定语修饰时,可加不定冠词。指孩提时代的教育、环境时，可以有复数。
