| 词源 |
dog tags. The metal identification tags worn by soldiers were not dubbed dog tags until World War I, when they were so called because they resembled a license tag on a dog’s collar. Identification tags became required in the Army in 1906, but men had worn them on their own initiative since the Civil War. Two are worn so that, in the event of death, one can be buried with the body and the other kept as a record. The Army is now experimenting with an embedded microchip dog tag that can hold up to 12,000 characters—an individual’s vital medical data and personnel file as well as his service number, blood type, and religion. |