慢速英语:Study Finds No Reason to Delay Pregnancy After a Miscarriage

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例句：Smoking during pregnancy increases the risk of miscarriage.
     怀孕期吸烟会增加流产的危险。

2.heartbreaking adj.令人心碎的,悲痛的

例句：After this heartbreaking experience,Thorpe turned to professional sports.
      在这次令人心碎的经历之后,索普转向职业运动。

3.painful adj.令人疼痛的

例句：She had a painful cut on her thumb.
      她的拇指上有个疼痛的伤口。

      The duty is painful to me, but it must be done.
      这义务对我来说很痛苦, 但它是无法避免的。

4.stillbirth n.死产

5.formerly adv.以前;从前

例句：This boat was formerly used on the rivers of China.
      这船从前航行在中国内河里。

      We now enjoy these comforts of which formerly we had only heard.
      我们现在享受到了过去只是听说过的那些舒适条件。

6.generalize vt.推广, 普及

例句：They generalized the use of a new invention.
      他们推广一项新发明的应用。