生前的英文：
period of time during one's life
while living
参考例句：
antenatal diagnostic procedures.
出生前的诊断手续Joe was really a rat.
乔生前是个十足的大骗子Amniocentesis is the standard prenatal detection procedure for aneuploidy.
羊膜穿刺术是出生前检测非整倍体的金标准。Most of the time of the defunct had been passed in helping himself.
死者生前大部分时间都是用来造福自己。 Most of the time of the defunct had been passed in helping himself
死者生前大部分时间都是用来造福自己。Two months before birth, we descended to our present position through a little opening called the inguinal canal
出生前两个月，我们通过一个名叫腹股沟管的小开口，下降到我们现在的位置。His father was named salvador, and he had an older brother, who had died 9 months before Dal's own birth
父亲名叫萨尔瓦多，他还有个在自己出生前9个月去世的哥哥。BC: Short for before Christ. Usually set in small caps and after the figures(e.g. 150 BC).
公元前:英文是基督降生前和意思。排字时(英文)，应用小型大写，放于年份之后。Knowledge of something in advance of its occurrence,especially by extrasensory perception;clairvoyance.
预见，洞察力尤指通过超感官的知觉而在某事发生前便得到其有关信息;洞察力According to Antinoriaccurate prenatal screening can detect most defectsso bad embryos could be aborted
根据安蒂诺里的说法，准确的生前检查能查出大多数缺陷，因此，不正常的胚胎可以流掉。
period是什么意思：
n. 时间；时期；周期；经期；课时；局；句号
adj. 某一时期的；当时特有的
juvenile period
幼年期(构成中心木质部的'一段时期) But this is a transitional period.
但这是个转变过程。The period includes the legal period and the period designated by the people's court.
期间包括法定期间和人民法院指定的期间。
time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的
discrimination time
辨别时间辨别时间 It is time to go.
该走了。They are not in step with the times.
他们跟不上时代的步伐。
during是什么意思：
prep. 在…整个期间；在…期间的某个时候
during one's minority
未成年期间 Drinking is not advised during pregnancy.
建议妊娠期不要饮酒。The capture was conducted during midnight.
俘虏行动在午夜举行。
