close-time delay-open operation

例句：

1. 1.The delay in the project's completion time is causing significant concern.
   项目完成时间的延迟引起了严重的担忧。
2. 2. Due to the weather conditions, we had to close the factory for a few days.
   由于天气条件，我们不得不关闭工厂几天。
3. 3. The delay in the delivery date has caused us considerable trouble.
   交货日期的延误给我们造成了相当大的麻烦。