• n. “非”（計算機中邏輯運算的一種）

縮寫自naught,零，無，沒有。

not

not: [14] In Old English and early Middle English the simple particle ne was used for making negative sentences. But it was evidently often felt to be in need of some reinforcement, for purposes of emphasis, and to do this job noht was brought in. Ancestor of modern English nought [OE], it was a compound formed from ne and ōwiht ‘anything’ (precursor of archaic modern English ought).

By the end of the 13th century this was being widely used as the sole negator in sentences, the ne having been dispensed with, and we soon find spellings reflecting the sort of reduction in pronunciation from nought to not that one would expect from its often weakly-stressed position.
=> nought, ought

not

negative particle, mid-13c., unstressed variant of noht, naht "in no way" (see naught). As an interjection to negate what was said before or reveal it as sarcasm, it is first attested 1900; popularized 1989 by "Wayne's World" sketches on "Saturday Night Live" TV show. To not know X from Y (one's ass from one's elbow, shit from Shinola, etc.) was a construction first attested c. 1930. Double negative construction not un- was derided by Orwell, but is persistent and ancient in English, popular with Milton and the Anglo-Saxon poets.

1. In conversational English " is not " often contracts to " isn't ".

口頭英語中is not 常縮寫為 isn ‘ t.

來自《簡明英漢詞典》

2. Success is not guaranteed. It is not handed to you. Success is earned.

成功無法保證，并非唾手可得。成功必須靠自己去爭取。

來自美劇《摩登家庭》

3. Do not wait for good things to happen to you. You need to walk towards happiness.

不要等待好事降臨，你要向幸福進發。

來自金山詞霸 每日一句

4. The happiest are not those who own all the best things, but those who can appreciate the beauty of life.

最幸福的人們并不一定什么都是最好，只是他們懂得欣賞生活的美好。

來自金山詞霸 每日一句

5. Success is not final, failure is not fatal: it is the courage to continue that counts.--Winston Churchill

成功不是終點，失敗也并非末日，最重要的是繼續前進的勇氣。

來自金山詞霸 每日一句