生身父母

natural parent───亲生父亲或母亲；天然放射系母体

natural gases───天然气（naturalgas的复数）

natural persons───[法]自然人（区别于法人）

natural varnish───天然清漆

natural harmonics───自然泛音，自然谐音

natural scientist───自然科学家

natural sciences───自然科学

natural ingredients───天然成分；天然原料

natural causes───自然因素

He was adopted when he was a baby; he has never known his natural parents.───他在婴儿时就被人收养, 从不知自己的生身父母是谁.

He said he knew nothing about his natural parents.───他说他对自己的亲生父母一无所知。

John was adopted as a baby, he never knew his natural parents.───约翰在婴儿时就被人领养, 他从不认识亲生父母.

Yes, I was abandoned by my natural parents ten years ago.───是的，我的父母十年前抛弃了我。

my mother, my natural parents were Samoan and only teenagers when I was born, so they gave me up for adoption.───母亲告诉我，我的生身父母是萨摩亚人，我出生时他们才十几岁，所以他们把我送给别人抚养。

STS discourages natural parents or guardians from visiting exchange students.───STS机构不鼓励学生父母或学生监护人到接待家庭看望学生.

Tizard, for example, mentions the need to support the natural parents to enable them to care adequately.

An adopted young person has the right to trace his natural parents.

Her adoptive parents were told at the time by doctors that her natural parents had abandoned her.

Their natural parents are separately seeking custody.

Most children are reared by their natural parents and most are cared for well.

After reading about the case, her natural parents phoned her mum and dad in Manchester.

But Francine ended up back with her natural parents in a dispute over how much money was to be paid.

John was adopted as a baby, he never knew his natural parents.

But they are not entirely unsympathetic to natural parents.