Power outages are a rare occurrence in our downtown office building.

停電在我們市中心的辦公大樓裡是很少發生的事。

Please report any occurrence of damaged packages to the warehouse manager immediately.

若發生任何包裹損壞的情況，請立即向倉庫經理回報。

Flight delays have become a common occurrence at the airport during the holiday season.

在假期旺季期間，班機延誤在這座機場已是常見的事。