If something goes unnoticed, nobody sees it, hears it, or realises it is there.

If something goes unnoticed如果某件事goes unnoticed（沒被注意到） nobody sees it, hears it, or realises it is there沒有人看到它、聽到它，或發現它的存在

The most useful thing to learn about this word is the company it keeps: it almost always follows go, pass, or remain — go unnoticed, pass unnoticed, remain unnoticed. That pattern is unusual in English, because those verbs normally do not take an adjective like this, and it is why the word can feel odd in a sentence students build themselves.

The most useful thing to learn about this word關於這個字最值得學的一點 is the company it keeps就是它常常跟哪些字一起出現 it almost always follows go, pass, or remain它幾乎都跟在go、pass，或remain後面 go unnoticed, pass unnoticed, remain unnoticed像go unnoticed、pass unnoticed、remain unnoticed that pattern is unusual in English這個搭配在英文裡是比較特別的 because those verbs normally do not take an adjective like this因為這些動詞通常不會這樣接形容詞 and it is why the word can feel odd in a sentence students build themselves所以學生自己造句時常常會覺得這個字放得怪怪的

It can be about physical things — a small mistake in a long report can easily go unnoticed — or about people, and with people it often carries a quiet sadness: an old man who lives alone and whose absence goes unnoticed for a week.

It can be about physical things它可以是講實體的東西 a small mistake in a long report can easily go unnoticed一份很長的報告裡一個小錯誤很容易就go unnoticed or about people或是講人 and with people it often carries a quiet sadness講到人的時候常常帶著一種淡淡的哀傷 an old man who lives alone and whose absence goes unnoticed for a week像一個獨居的老人，不見了一個星期都沒人發現

But it can also be exactly what someone wants: a thief hopes to slip in unnoticed, and a shy student is glad to get to the back row unnoticed. The word itself does not say whether that is good or bad; the situation says it.

But it can also be exactly what someone wants不過這也可能正是有人想要的 a thief hopes to slip in unnoticed小偷希望能悄悄溜進去不被發現 and a shy student is glad to get to the back row unnoticed一個害羞的學生也很高興能不被注意地坐到後排 the word itself does not say whether that is good or bad這個字本身不會告訴你那是好事還是壞事 the situation says it是情境決定的

It also works before a noun, though less often — an unnoticed detail, an unnoticed error.

It also works before a noun它也可以放在名詞前面 though less often不過比較少見 an unnoticed detail, an unnoticed error像an unnoticed detail（沒被注意到的細節）、an unnoticed error（沒被發現的錯誤）