经常发生

• On the clue of income distribution theory
  兼论拉美为什么经常发生经济危机
• Life is what happens to us where we are making other plan
  生活就是经常发生的一些偶然。
• Life is what happens to us while we are making other plans
  生活就是经常发生的一些偶然。
• Yeah i know , this happens all the time
  是的，我知道，这些事经常发生。
• A transaction database will have frequent checkpoints
  而事务数据库则具有经常发生的检查点。
• If changes are frequent , consider the following
  如果更改经常发生：
• This pattern has frequently been seen in the financial markets
  此现象在金融市场上经常发生。
• Earthquakes occur frequently in this area
  这一地区经常发生地震。
• Iran has a history of aircraft accidents
  伊朗经常发生坠机事故。
• As often happens , he is late again
  正如经常发生的，他又迟到了。