miscarry       
verb [ I or T ] uk/mɪˈskær.i/ us/ˈmɪsˌker.i/
 流产,小产
If a woman miscarries, her baby dies because it is born before it has fully developed.
  Sadly, she miscarried eight weeks into the pregnancy. 不幸的是,她在怀孕八周后流产了。 
 She miscarried her first baby. 她的第一个孩子流产了。 
 See: miscarriage
 - More examples
 - Her friend had recently miscarried.
 - She miscarried at 22 weeks.
 - Up to 30% of pregnancies are miscarried.