occurring

• Past-hypnotic amnesia frequently occurs .
  经常会发生催眠术后的健忘症。
• Breast infections occur during lactation .
  乳房感染发生于授乳期。
• One and the same idea occurred to each of them .
  他们都产生同样的想法。
• Oxidation cannot occur without reduction .
  没有还原反应就没有氧化反应。
• Many casualties occured during the hurricane .
  这场飓风中有许多人伤亡。
• This will occur both in sands and clays .
  这在砂土地和粘土地带常常发生。
• Nothing occurred to alloy our happiness .
  未发生任何损害我们幸福的事情。
• The main events occurred during reactivation .
  重激活期间发生了主要事件。
• Abortion may occur as a complication .
  流产可作为合并症而发生。
• The unsaturated link occurs in a cyclic system .
  在环体系中存在不饱和键。