It's been 75 years since the USS Grayback went missing with 80 sailors aboard. Now, an organization that searches for sunken World War II submarines has solved the mystery of where it went down.
원문출처 : https://www.cnn.com/2019/11/11/us/uss-grayback-wwii-submarine-discovery-trnd/index.html
원문출처 : https://www.cnn.com/2019/11/11/us/uss-grayback-wwii-submarine-discovery-trnd/index.html