Attache
来自Big Physics
early 19th century: from French, literally ‘attached’, past participle of attacher .
etymonline
attache (n.)
1835, from French attaché "junior officer attached to the staff of an ambassador, etc.," literally "attached," noun use of past participle of attacher "to attach" (see attach). Attache case "small leather case for carrying papers" first recorded 1900.