lost river

例句：

1. 1. The lost river is a symbol of the unknown and danger.
   迷失的河流象征着未知和危险。
2. 2.The lost river was once a source of life for the local people.
   迷失的河流曾是当地人的生命之源。
3. 3. The lost river has been rediscovered by archaeologists, who are trying to understand its history.
   失落的河流被考古学家重新发现，他们试图理解其历史。