dredge up

例句：

1. 1.The old castle was dredged up from the depths of history.
   这座古老的城堡从历史的深处被挖掘出来。
2. 2. The truth was dredged up during the investigation.
   真相在调查中被揭露了。
3. 3. The story of a long-forgotten tribe was dredged up by archaeologists.
   考古学家们发现了一个被遗忘的部落的故事。