attaché
/ɑːtɑːˈʃeɪ/noun
1
- a person on the staff of an ambassador, typically one having a specialized area of responsibility（大使馆）专员：
naval and air attaché.
海军和空军武官。
2
- N. Amer. short for ATTACHÉ CASE.〈北美〉 ATTACHÉ CASE的简称。
词源
early 19th cent.: from French， literally 'attached'， past participle of attacher.