hotspot

例句：

1. 1. The hotspot of the event was the main stage.
   事件的热点是主舞台。
2. 2. The scientist found a new hotspot in the ocean.
   科学家在海洋中发现了一个新的热点。
3. 3. The hotspot is where the earthquake occurred.
   热点就是地震发生的地方。