MIA is an army and news word for a soldier who disappeared in a fight and who may still be alive. The letters stand for missing in action. The person is gone from their unit, and nobody yet knows if they died, were taken prisoner, or are lost somewhere. That last hope is why families hold on to the letters: MIA is not the same as saying someone was killed.

MIA is MIA是 an army and news word for a soldier who disappeared in a fight and who may still be alive軍方和新聞用語，指在戰鬥中失蹤、可能還活著的軍人。The letters stand for missing in action這幾個字母代表missing in action（作戰中失蹤）。The person is gone from their unit,這個人從部隊裡消失了 and nobody yet knows if they died, were taken prisoner, or are lost somewhere而且還沒有人知道他是死了、被俘虜了、還是在某處失蹤。That last hope is why families hold on to the letters:正是這最後一絲希望，讓家屬緊抓著這幾個字母不放 MIA is not the same as saying someone was killedMIA跟說某人已經陣亡是不一樣的。

You say it letter by letter: M-I-A. It is serious, official language. You meet it in war reports, memorials, and history class.

You say it letter by letter:你要一個字母一個字母唸 M-I-A M-I-A。It is serious, official language這是很嚴肅的正式用語。You meet it in war reports, memorials, and history class你會在戰爭報導、紀念活動、還有歷史課上看到它。

Though actually, people now stretch it a long way from the army. A friend who stops answering messages may write “Sorry I was MIA all week.” That is the army letters used loosely to mean “I vanished for a while.” It is common in casual American English, but it is a joke about being gone, not the original meaning, and it can sound cold next to a real missing soldier.

Though actually, people now stretch it a long way from the army不過實際上，現在人們把這個字延伸用到離軍隊很遠的地方。A friend who stops answering messages may write "Sorry I was MIA all week."一個不回訊息的朋友可能會寫『Sorry I was MIA all week.』 That is the army letters used loosely to mean "I vanished for a while."這是把軍方用語鬆散地拿來用，意思是『我消失了一陣子』 It is common in casual American English,這在美式口語裡很常見 but it is a joke about being gone,不過這是拿『消失』開玩笑 not the original meaning,不是原本的意思 and it can sound cold next to a real missing soldier放在真正失蹤的軍人旁邊會顯得很冷血。