take the child of another person into one's family to become one's own child
take sth as one's own
accept formally or officially; approve
"She followed the feminist movement"
"The candidate espouses Republican ideals"
"When will the new President assume office?"
"His voice took on a sad tone"
"The story took a new turn"
"he adopted an air of superiority"
"She assumed strange manners"
"The gods assume human or animal form in these fables"
"They adopted two children from Nicaragua"
"adopt a book for a screenplay"
"She embraced Catholicism"
"They adopted the Jewish faith"
I had rather to adopt a child than get it.
出自：Othello , Shakespeare
Those whom he happens to adopt as favourites.
出自： S. Johnson