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.

辞典例句

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.

互联网

He said he knew nothing about his natural parents.

他说他对自己的亲生父母一无所知.

互联网

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.

互联网