1. 1理據;口語多說「理由」。別當成「理性」(那是 rational)

    When someone asks for the rationale, they want the reasons behind a decision or a belief — not only what you chose, but why. A hospital might publish the rationale for a new visiting rule; a student might ask for the rationale behind a grade. The word sits on the formal side. At home, people usually just say "why." You will meet it in essays, meetings, and news. Though actually, the rationale people write down is sometimes cleaner than the real mix of fear, habit, and last-minute change that produced the choice. It is a noun. The cousin word rational is an adjective: a rational plan is a plan that uses reason.

From the word’s history

From Late Latin ratiōnāle.

源自晚期拉丁文 ratiōnāle。

Wiktionary

組成From Latin ratiōnāle (also given as Late Latin ratiōnāle), from ratio, 'reason' or 'a calculated share'.

同家族的字

  • rationalsame Latin ratio: this is the adjective ('using reason')
  • ratiosame Latin root; a ratio is a reasoned relation between numbers

原始詞典資料3 筆記錄

以下是外部詞典記錄的用法,摘錄並精簡格式,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。

rationalenoun詞源 1/ˌɹæʃ.əˈnɑːl/

  • 1

    An explanation of the basis or fundamental reasons for something.

  • 2

    A justification or rationalization for something.

    • He confirmed that Bashir successfully manipulated Diana’s paranoia by showing her brother, Earl Spencer, forged documents that “proved” her closest advisers had betrayed her to the palace, inflaming her desire to speak out for herself. Bashir lied his way to the biggest TV scoop of the 20th century. Dyson’s censure at least gave her two sons some rationale for why Diana did something so destructive to their happiness.

rationalenoun詞源 2/ˌɹæʃ.əˈnɑːl/

  • 1

    rarelifestylereligionA liturgical vestment worn by some Christian bishops of various denominations.

    • the local bishop, H.E. Gregor Maria Hanke, is shown wearing that rarest of liturgical garments, the rationale.

摘錄自 英文維基詞典 English Wiktionary,已精簡格式;依 CC BY-SA 4.0 授權使用,改動後的內容同樣以此授權提供。