only child

US /ˈoʊn.li ˌtʃaɪld/
UK /ˈoʊn.li ˌtʃaɪld/
"only child" picture
1.

獨生子女, 獨生子, 獨生女

a child who has no siblings

:
Being an only child, she sometimes wished for a brother or sister.
作為獨生子女,她有時希望有個兄弟姐妹。
He grew up as an only child in a quiet neighborhood.
他在一個安靜的社區裡作為獨生子女長大。