latchkey child

n.

挂钥匙儿童；

The Latchkey Child
The latchkey child: Whose responsibility?
Latchkey childred are not necessarily deprived
Children in self-care: the latchkey child
The primary latchkey child : a qualitative and quantitative study /
The latchkey child dilemma : implications, ramifications, and applications /
Who Is Watching Our Children? The Latchkey Child Phenomenon.
Extended day programs ‐‐ a place for the latchkey child
Alone after school // Do your homework on preparing `latchkey child' for self-care
Clash Over the Maturity of a Latchkey Child; Pr. William Family Protests After Social Worker Takes Away 10-Year-Old Without Warning