
"they divorced after the birth of the child" "his election signaled the birth of a new age"
"they celebrated the birth of their first child"
"the overall rate of incidence of Down's syndrome is one in every 800 births"
"My wife had twins yesterday!"
误 The births of three boys were reported that night.
误 Three boys' births were reported that night.
正 Three births were reported that night.
析birth的复数births可以表示两个或两个以上的孩子出生,但用在介词of前面或用在名词所有格的后面时则用单数形式。