VOA慢速英语2012.07.30 怀孕, 妊娠, pregnancy, problems, natural, 怀孕, 妊娠, pregnancy, problems, natural

Rebecca949

A miscarriage is the natural loss of a baby before the twentieth week of pregnancy. Experts say many pregnancies end before a woman even knows she was pregnant. Up to twenty percent of known pregnancies end in a miscarriage. Miscarriages are generally caused by genetic problems with the baby that prevent it from developing. 流产是怀孕前20周的一种自然淘汰。专家说，许多妊娠在孕妇知道自己已经怀孕前就已经结束。多达20%的已知妊娠会发生这种情况。
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zhant220

By, whatever the cause, the loss of pregnancy can be hard breaking and sometimes the advice that women receive after a miscarriage can also be hard breaking.

jizhao19960124