scavenging period

例句：

1. 1.The team was busy scouring the area for clues.
   团队正在忙着搜寻线索。
2. 2.The old man spent hours scavenging through the trash for valuable items.
   老人花了很多小时在垃圾堆里寻找有价值的物品。
3. 3. After the storm, the city needed to scavenge through the rubble for any survivors.
   暴风雨过后，城市需要从废墟中搜寻任何幸存者。