spontaneous abortion

常见例句

Only one dose of the live vaccine is required to provide long-term immunity but the vaccine that is currently in use may result in spontaneous abortion if given to pregnant animals.
提供长期免疫只需要一剂活疫苗，但目前所使用的疫苗如果用于怀孕动物，则可能造成自然流产。
Heavy drinking during pregnancy can lead to spontaneous abortion or a range of disabilities known as fetal alcohol spectrum disorders, of which fetal alcohol syndrome is the most severe.
怀孕期间酗酒可能导致自然流产或被称为胎儿酒精谱系障碍的一系列残疾，其中以胎儿醇中毒综合征最为严重。
The next step, according to Dr Catalano, is to measure in pregnant women the levels of hormones known to predict spontaneous abortion, and to work out if these levels vary with stressful events.
根据Catalano博士的说话，下一步就是要检查怀孕妇女体内荷尔蒙水平（能由荷尔蒙水平预测自然流产的几率）并研究水平是否会因压力环境有所差异。

In more than 75% of female cases it occurs without symptoms, but, if left untreated, it may cause inflammation of the pelvis, spontaneous abortion and infertility.
ECONOMIST: The invisible worm
The reason for this was that the polyandrous females suffered a far lower rate of spontaneous abortion, which occurs when genetic incompatibility between the maternal and paternal genomes results in an immunological conflict between mother and embryo.
ECONOMIST: Polyandry
Buffett received spontaneous applause for taking on a crude complaint that his foundation was backing Planned Parenthood and abortion rights.
FORBES: Omaha-Cum-Lourdes