In humans lasts on average about 270 days (from conception to birth).
人类孕期平均约为270天(从怀孕到生产)。
This video shows the development of an unborn human being from conception to birth.
海外点击过百万的经典视频，人类从怀孕到出生的发育全过程！
Staff used three-dimensional ultrasound scans and tinycameras to film the pregnancy process from conception to birth.
工作人员使用三维超声扫描仪和微相机来拍摄从怀孕到分娩的怀孕过程。
Fetus: in human beings, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.
胎儿：人类从开始怀孕的第八个星期到出生这一期间的有别于更早期的胚胎的幼儿。
Fetus: in human beings, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.
胎儿：人类从开始怀孕的第八个星期到出生这一期间的有别于更早期的胚胎的幼儿。
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