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Forthwith means immediately — at once, without a pause to wait. You will see it in law, in official letters, and in slightly old narrative: a court orders someone to leave forthwith; a captain must report forthwith.
Forthwith means immediatelyforthwith的意思是立即 at once, without a pause to wait馬上，不用停下來等 You will see it in law, in official letters, and in slightly old narrative你會在法律文件、公文，還有稍微老派的敘述裡看到它 a court orders someone to leave forthwith法院命令某人forthwith離開 a captain must report forthwith船長必須forthwith回報
It is not the word you text a friend when you want them now; that is right now, immediately, or in Taiwan English sometimes ASAP.
It is not the word you text a friend when you want them now這不是你想叫朋友現在就來時會傳的字 that is right now, immediately, or in Taiwan English sometimes ASAP那種情況會用right now、immediately，台灣英文有時候會說ASAP
Though actually the old build is almost physical: forth (forward) plus with (along with), as if the next act comes forward together with this moment. Middle English already used forth-with for “at once,” and also for “at the same time.” Today the word feels stamped and legal.
Though actually the old build is almost physical不過其實這個字原本的組成幾乎是很具體的畫面 forth (forward) plus with (along with)forth（向前）加上with（跟著一起） as if the next act comes forward together with this moment好像下一個動作跟這個當下一起往前走 Middle English already used forth-with for "at once,"中古英語就已經用forth-with來表示「立刻」 and also for "at the same time."也用來表示「同一時間」 Today the word feels stamped and legal現在這個字給人蓋章、法律文件的感覺
Writers sometimes pick it for a dry comic seriousness — which tells you it does not belong in casual chat.
Writers sometimes pick it for a dry comic seriousness作家有時候會選用它，製造一種一本正經的乾式幽默 which tells you it does not belong in casual chat這也告訴你它不屬於輕鬆的聊天場合
組成From Middle English forth-with, “at once; at the same time; straight ahead,” partly from the phrase forth with (something), and partly from forth-with-al (whence the even rarer forthwithal). Surface: forth + with.
同家族的字
- forththe “forward / out” half — the action is to come forward now
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
forthwithadv/fɔːθˈwɪð/
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formalliterarylawWithout delay; immediately.
- Neyther euery thynge, whiche ony maner way is bredde or gendred of man: is forthwith a man (for els lyſe ſholde be called men) But that thynge, whiche is conceyued in the matrice or wombe of a woman, of the very ſubſtaunce of man: [...]
- Let ther be Light, ſaid God, and forthwith Light, / Ethereal, firſt of things, quinteſſence pure, / Sprung from the Deep, [...]
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。