If you write something in longhand, you write it by hand and you write the words out in full. You are not typing, and you are not using shorthand — those special tiny marks people once used to catch speech fast.

If you write something in longhand如果你用longhand寫東西, you write it by hand就是用手寫 and you write the words out in full而且把字完整寫出來。You are not typing不是用打字, and you are not using shorthand也不是用shorthand — those special tiny marks people once used to catch speech fast那種以前用來快速記錄講話內容的特殊小記號。

A teacher may want a longhand draft; a witness may give a longhand statement. “Hand” here means handwriting. “Long” is only there because the words are not cut short; nobody's hand is long.

A teacher may want老師可能會要求 a longhand draftlonghand草稿; a witness may give證人可能會給 a longhand statementlonghand的證詞。"Hand" here means這裡的『hand』指的是 handwriting手寫。"Long" is only there because『Long』會出現只是因為 the words are not cut short字沒有被縮短; nobody's hand is long沒有人的手真的很長。

These days most of us type, so longhand often just means “by hand, in ordinary writing,” even when nobody in the room still knows shorthand. It can be a noun (write it in longhand) or an adverb (she wrote it longhand).

These days most of us type現在我們大多數人都用打字, so longhand often just means所以longhand常常只是指 "by hand, in ordinary writing,"『用手寫、用一般的寫法』, even when nobody in the room still knows shorthand就算房間裡沒有人還會速記也一樣。It can be a noun它可以當名詞 (write it in longhand)（write it in longhand）, or an adverb也可以當副詞 (she wrote it longhand)（she wrote it longhand）。