ovale [oʊ'veɪl]

例句:

• Q . What is the connection between migraine and patent foramen ovale?
  偏头痛与卵圆孔未闭有什么联系?
  
• At the right is a probe patent foramen ovale in an adult.
  右为成年人卵圆孔未闭的探查.
  
• Patent foramen ovale might increase your risk of stroke and migraines, but the evidence isn't clear.
  卵圆孔未闭会增加卒中和偏头痛的发病危险, 其原理尚不清楚.