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汉语拼音：rèn shēn

指妇女怀胎的过程。从成熟卵受精后到胎儿娩出，一般为280天左右。也指动物怀孕的过程。娠（shēn）。

1. 亦作“姙娠”。怀孕；身孕。

   汉 荀悦 《汉纪·成帝纪二》：“后姊 安平侯 夫人 謁 等为后求媚道，呪诅后宫姙娠者。” 晋 张华 《博物志》卷二：“故古者妇人姙娠，必慎所感。” 宋 张齐贤 《洛阳缙绅旧闻记·衡阳县令周妻报应》：“ 周 旧畜婢数人，内二人姙娠。后妻每加以他事鞭挞之，无虚日。” 沙汀 《闯关》一：“他们之所以这样慎重，因为里面还附有一封 西安 寄来的信，是一个发觉自己有了妊娠的女性写的。”

• The gestation period can be anything between 95 and 150 days.

  妊娠期从95天至150天不等。

• After a lot of agonizing she decided to terminate the pregnancy.

  经历一番痛苦挣扎后，她决定终止妊娠。

• Drugs taken during pregnancy may cause physical deformity in babies.

  妊娠期服用的药物可能引起婴儿身体畸形。

• During the third month of pregnancy the sex of the child becomes determinable.

  孩子的性别在妊娠期第三个月便可查明。

• Drinking is not advised during pregnancy.

  建议妊娠期不要饮酒。

• Some foetal malformations cannot be diagnosed until late in pregnancy.

  有些胎儿的畸形部位得等到妊娠后期才能诊断出来。

• the first trimester of pregnancy

  妊娠的头三个月

• She chose to have an early termination.

  她选择了早期终止妊娠.

• Pregnancy begins when the fertilized egg is implanted in the wall of the uterus.

  当受精卵植入子宫壁时，妊娠就开始了。

• You should also have a medical check-up after the termination of a pregnancy.

  终止妊娠后还应该体检一次。

• Most women will be offered an ultrasound scan during pregnancy, although it's not obligatory.

  大多数处于妊娠期的妇女将被建议接受超声波检查，不过这不是强制性的。

• In the world as a whole, about ten per cent of all pregnancies are terminated.

  从全世界看来，所有怀孕的人中约10%的妊娠被终止了。

• She had a normal pregnancy and delivered a healthy child.

  她正常妊娠，生了个健康的孩子。

• Blood progesterone remains constant throughout pregnancy in the eve.

  牛和绵羊血液孕酮含量在全妊娠期保持不变.

• The corpus luteum of the previous pregnancy regresses very rapidly.

  前次妊娠的黄体很快开始退化.