发生次数

例句：

1. 1. The meeting will take place next Friday.
   会议将于下周五举行。
2. 2. He happened to be in the right place at the right time.
   他恰好在正确的时间和地点出现。
3. 3. The accident occurred due to a malfunctioning brake system.
   事故是由于一个失灵的刹车系统引起的。