Definition: the time when someone is a child Level: B1
她有一个不快乐的童年。
She had an unhappy ___childhood.
童年并不总是快乐的时光。
___Childhood is not always a happy time.
这封邮件来自一个我自从童年以来就没有听说过的人。
The e-mail was from somebody who I haven't heard about since my ___childhood.
