heatspot

例句：

1. 1.The scientist found a hotspot of activity in the region.
   科学家在该区域发现了一个热点活动区。
2. 2. The research team identified several hotspots for further investigation.
   研究小组确定了几个热点区域以供进一步调查。
3. 3.The city is known for its many hotspots of nightlife.
   这个城市以其丰富的夜生活热点而闻名。