MIA /ˌɛmaɪˈeɪ/

• 1. 

  ADJ MIA is used to describe members of the armed forces who do not return from a military operation but who are not known to have been killed or captured. MIA is an abbreviation for "missing in action." 战斗中失踪的 [美国英语]

  例：

  He was listed as MIA.

  他被列为战斗失踪人员。