She was delivered of a healthy boy.

她生下一个健康的男孩儿。

《牛津词典》

He was a little boy, and she was grown up.

他是个小男孩，而她已经长大了。

youdao

She had never seen such a funny boy, or such a nice one.

她从来没见过这么有趣、这么可爱的男孩。

youdao

"When my mother was expecting me, she was expecting a boy to come along in January.

VOA: special.2009.12.21

Behind it,she knew, was a little boy with wide blue eyes who wanted her.

VOA: special.2010.05.15

She was arrested and charged with sexual wrongdoing with a ten-year-old boy.

VOA: special.2009.02.22

She was neither the oldest nor the youngest, nor was she a boy, which would have been a Hart novelty.

NEWYORKER: Or Else

According to Guardsman Lee Wheeler, the duchess told him that she did not know if she was expecting a boy or a girl, but said she would like a boy and William would like a girl.

BBC: Duchess of Cambridge hands out shamrocks to soldiers

Not that I guessed right away that she was a boy.

NEWYORKER: The Cold Outside