A whit means the tiniest possible amount — a scrap, a speck. In modern English it almost never appears alone; it lives inside a small set of fixed phrases, nearly always negative: 'not a whit' (not at all), 'not one whit', 'not a whit better', 'never a whit'. So 'He didn't care a whit' means he did not care even slightly, and 'She hasn't changed a whit' means she has not changed at all.

A whitwhitmeans意思是the tiniest possible amount最最最小的一點點——a scrap, a speck一丁點、一小屑。In modern English在現代英文裡it almost never appears alone它幾乎不會單獨出現；it lives inside a small set of fixed phrases它只活在一小群固定片語裡，nearly always negative幾乎都是否定句：'not a whit'（not at all意思是一點也不）、'not one whit'、'not a whit better'、'never a whit'。So所以'He didn't care a whit'means意思是he did not care even slightly他一點也不在乎，and 'She hasn't changed a whit'means意思是she has not changed at all她一點都沒變。

It is old-fashioned and literary — you will find it in Shakespeare, in the Bible, in older novels, and in the writing of people who like a slightly grand style. Ordinary speech today uses 'not a bit' or 'not at all' instead. Worth knowing so you can read it, but you don't need to produce it.

It is old-fashioned and literary它老派又帶點文學味——you will find it in Shakespeare你會在莎士比亞的作品裡看到它，in the Bible在聖經裡，in older novels在比較舊的小說裡，and in the writing of people who like a slightly grand style還有喜歡寫得稍微氣派一點的人的文章裡。Ordinary speech today今天的日常口語uses 'not a bit' or 'not at all' instead改用not a bit或not at all。Worth knowing so you can read it值得認識、讓你看得懂，but you don't need to produce it但你不需要自己拿來用。

It comes from the same old word as 'wight', an old word for a creature or person; the sense narrowed from 'a thing' down to 'the smallest thing'.

It comes from the same old word as 'wight'它跟wight這個古字同源，an old word for a creature or personwight是指生物或人的古字；the sense narrowed from 'a thing'意思從「一件東西」down to 'the smallest thing'縮小成「最小的東西」。