basis

B1 CET-4 Oxf 3000 高中 FREQ #4112 ★★★★☆

n. 基础, 主要成分 [化] 基底

发音

US /ˈbeɪ.sɪs/
UK /ˈbeɪ.sɪs/
AU /ˈbæɪ.sɪs/

词形变化

baseis bases 复数 bases basises baseis 复数 basises 复数

教材释义与例句

名词

基础；底部；主要成分；基本原则或原理

the facts, ideas, or things from which something can be developed

Their claim had no basis in fact (= it was not true ) .

他们的说法没有事实根据。

释义与例句

n. B1 Oxf 3000
  1. 1.

    A physical base or foundation.

    1695, William Congreve, To the King, on the taking of Namur, 1810, Samuel Johnson, Alexander Chalmers (biographies), The Works of the English Poets from Chaucer to Cowper, Volume 10, page 271, Beholding rocks from their firm basis rent; Mountain on mountain thrown, With threatening hurl, that shook th' aerial firmament!

  2. 2.

    A starting point, base or foundation for an argument or hypothesis.

    I wonder if the South Korean side has any basis that its smog is from China.

  3. 3.

    An underlying condition or circumstance.

    基础

  4. 4.

    A regular frequency.

    You should brush your teeth on a daily basis at minimum.

    The flights to Fiji leave on a weekly basis.

    Cars must be checked on a yearly basis.

  5. 5.

    The difference between the cash price a dealer pays to a farmer for his produce and an agreed reference price, which is usually the futures price at which the given crop is trading at a commodity exchange.

    植物学 商务 金融

    Included in the basis could be elevation, cleaning, freight by truck and/or rail, government inspection fees, administration fees, interest and storage charges as well as allowance for risk and profit for the grain dealer.

  6. 6.

    In a vector space, a linearly independent set of vectors spanning the whole vector space.

    基

    数学
  7. 7.

    Amount paid for an investment, including commissions and other expenses.

    金融 商务
  8. 8.

    A collection of subsets ("basis elements") of a set, such that this collection covers the set, and for any two basis elements which both contain an element of the set, there is a third basis element contained in the intersection of the first two, which also contains that element.

    数学

    The collection of all possible unions of basis elements of a basis is said to be the topology generated by that basis.

词汇关系

名词

同义词 7

ground base foundation footing cornerstone groundwork fundament

上位词 8

part foundation portion assumption component supposition constituent supposal

下位词 2

common ground meat and potatoes

整体词 1

explanation

相关短语

on a regular basis 经常; 例行的; 有规律的 on a day-to-day basis 每日 on a daily basis 每天；日常；每天都 basis point 基点（等于0.01%） basis points basis spline basis splines basis vector [计] 基底向量 basis vectors Bernstein basis polynomial Bernstein basis polynomials rational basis review Hilbert's basis theorem on the basis of 以...为基础 on a need-to-know basis

词源

From Latin basis, from Ancient Greek βάσις (básis), from Proto-Indo-European *gʷémtis, derived from Proto-Indo-European *gʷem- (whence also come). Doublet of base.

来源：wiktionary