Used about a bomb, shell, mine, or firework that was meant to explode, did not, and is still sitting there able to go off. That last part is the whole feeling of the word: 'unexploded' is not a calm description, it is a warning.

Used about a bomb, shell, mine, or firework用在炸彈、砲彈、地雷或煙火上 that was meant to explode, did not,原本應該爆炸、卻沒有爆炸 and is still sitting there able to go off現在還放在那裡隨時可能爆炸。That last part is the whole feeling of the word:最後那一點正是這個詞的整體語感: 'unexploded' is not a calm description,'unexploded' 不是平靜的描述 it is a warning而是一種警告。

It almost always appears in front of a noun — 'an unexploded bomb', 'unexploded shells', 'unexploded ordnance' — and hardly ever after 'be'. You would say 'they found an unexploded bomb', not 'the bomb was unexploded'.

It almost always appears in front of a noun —它幾乎總是放在名詞前面— 'an unexploded bomb', 'unexploded shells', 'unexploded ordnance' —'an unexploded bomb'、'unexploded shells'、'unexploded ordnance'— and hardly ever after 'be'幾乎不會放在 'be' 後面。You would say 'they found an unexploded bomb',你會說 'they found an unexploded bomb' not 'the bomb was unexploded'不會說 'the bomb was unexploded'。

The commonest phrase by far is 'unexploded bomb', usually in news stories about old wartime bombs found on building sites in Europe, where whole streets get emptied while the army takes it away. 'Unexploded ordnance' (often shortened to UXO) is the technical term armies and clearance charities use for all such leftovers — bombs, mines, grenades — and it is worth recognising even though you will never need to say it.

The commonest phrase by far is 'unexploded bomb',目前最常見的說法是 'unexploded bomb'（未爆彈） usually in news stories about old wartime bombs found on building sites in Europe,通常出現在關於歐洲工地挖到舊戰爭炸彈的新聞裡 where whole streets get emptied while the army takes it away那時整條街都要淨空，等軍方把炸彈移走。'Unexploded ordnance' (often shortened to UXO)'Unexploded ordnance'（常縮寫成 UXO） is the technical term armies and clearance charities use是軍方和清除地雷慈善組織用來稱呼的專業術語 for all such leftovers — bombs, mines, grenades —這類殘留物——炸彈、地雷、手榴彈— and it is worth recognising even though you will never need to say it就算你永遠不需要自己講，也值得認得。

English also uses 'unexploded bomb' as a picture for a problem that everyone can see, that nobody has dealt with, and that will go off badly one day: a family secret, a debt, a policy nobody wants to touch. That figurative use is fairly common in journalism and speeches.

English also uses 'unexploded bomb' as a picture英文也會用 'unexploded bomb' 來比喻 for a problem that everyone can see, that nobody has dealt with,一個大家都看得見、沒人處理的問題 and that will go off badly one day:總有一天會爆發: a family secret, a debt, a policy nobody wants to touch像是家庭裡的秘密、一筆債務，或是沒人敢碰的政策。That figurative use is fairly common這種比喻用法相當常見 in journalism and speeches在新聞和演講裡。

It is a word you will read more than you will ever say, unless something has gone very wrong.

It is a word you will read more than you will ever say,這是個你會讀到、卻很少需要自己說出口的詞 unless something has gone very wrong除非出了很嚴重的狀況。