valid

B2 CET-4 Oxf 5000 高中 FREQ #8530 ★★☆☆☆

a. 有确实根据的, 有法律效力的, 正当的, 正确的 [经] 有效的

发音

US /ˈvælɪd/
其它 /ˈvæ.lɪd/
其它 /ˈveɪ.lɪd/

词形变化

more valid 比较级 validest most valid 最高级

教材释义与例句

形容词

有效的；有根据的；合法的；正当的

a valid ticket, document, or agreement is legally or officially acceptable

a valid credit card

有效信用卡

Your return ticket is valid for three months.

你的往返票有效期为三个月。

释义与例句

adj. B2 Oxf 5000
  1. 1.

    Well-grounded or justifiable, pertinent.

    I will believe him as soon as he offers a valid answer.

  2. 2.

    Acceptable, proper or correct; in accordance with the rules.

    有效的

    A valid format for the date is DD/MM/YY.

    Do not drive without a valid license.

  3. 3.

    Related to the current topic, or presented within context, relevant.

  4. 4.

    Of a formula or system: such that it evaluates to true regardless of the input values.

    数学 哲学
  5. 5.

    Of an argument: whose conclusion is always true whenever its premises are true.

    数学 哲学

    An argument is valid if and only if the set consisting of both (1) all of its premises and (2) the contradictory of its conclusion is inconsistent.

  6. 6.

    Genuine - as distinguished from efficient or regular - sacrament.

    宗教

词汇关系

形容词

反义词 1

invalid

近义相关 10

sound legal logical legitimate binding reasoned validated effectual unexpired well-grounded

参见 3

reasonable sensible legitimate

相关短语

valid time valid times valid name valid names

词源

Etymology tree Proto-Indo-European *h₂welh₁- Proto-Indo-European *h₂wl̥h₁éh₁yeti Proto-Italic *walēō Latin valeō Proto-Indo-European *dʰeh₁-der. Latin -idus Latin validusder. Middle French validebor. English valid Borrowed from Middle French valide (“healthy, sound, in good order”), from Latin validus, from valeō (“to be strong, to be healthy, to be worth”) + -idus, from Proto-Indo-European *h₂welh₁- (“be strong”).

来源：wiktionary