birth: n.1.出生,诞生;生产,分娩。2.出身,家系;血统;门第,家世。3.起源,开始。4.〔古语〕产物,产儿。短语和例子the date of one's birth 生日。 A still [difficult] birth 死[难]产。 Five young at a birth 一胎产五仔。 A person of birth [of no birth ] 出身高贵[卑微
" the longer the birth interval , the less likely that the second fetus will be born alive , " lindburg said . " we are simply letting nature take its course . 林德伯格说: “生产间隔时间越长,第二胎成活的可能性就越小,我们只能听天由命了。 ”