中国黄色一级毛片,伊人黄色片一,亚洲最新av一级大片,久久9久,影音先锋三级国产精品电影,日本美女精品视频免费网址大全,老司机在线四虎在线

rational

rational
adjective
  1. based on or in accordance with reason or logic
    基于理性的，合理的，推理的
    I'm sure there's a perfectly rational explanation.
    我確信有完全合理的解釋。
    ■(of a person) able to think clearly, sensibly, and logically
    （人）理性的，理智的；明事理的
    Ursula's upset—she's not being very rational.
    厄休拉煩躁不安——她現(xiàn)在不太理智。
    ■endowed with the capacity to reason
    富有理性的
    man is a rational being.
    人是理性動(dòng)物。
  2. (Mathematics)(of a number, quantity, or expression) expressible, or containing quantities which are expressible, as a ratio of whole numbers. When expressed as a decimal, a rational number has a finite or recurring expansion
    (數(shù))有理的；有理數(shù)的
派生
rationality
noun
rationally
adverb
語源
  1. late Middle English (in the sense 'having the ability to reason'): from Latin rationalis, from ratio(n-) 'reckoning, reason' (see ratio)
英語寶典
考試詞匯表