外博词典,懂英语单词快速记忆法的在线英语词典

a

小学初中考研IELTSGRE

[ə] [eɪ]

art.一(个);每一(个);任一(个)

场景例句

  1. She's a phony, a fake.

    她是个伪君子、骗子。

    《柯林斯英汉双解大词典》

  2. He's a scoundrel! A cad!

    他是个恶棍!一个卑鄙的无赖!

    《柯林斯英汉双解大词典》

  3. A lion is a dangerous animal.

    狮子是猛兽。

    《牛津词典》

  4. 更多双语例句 »

单词家谱

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a 一 (个)

不定冠词an在发展过程中出现的缩略形式,应用于首字母为辅音的单词及h发音单词。

a

first letter of the Roman alphabet, based on Greek alpha (see alpha). In music from c. 1600 as the name of the sixth note of the natural scale; it is the note given by a fixed-tone instrument (usually oboe or organ) to which all the instruments of an orchestra are tuned. As a blood type, 1926, denoting A agglutinogens. The A side of a two-sided record (by 1962, see side (n.)) held the material chosen for promotion. A-bomb, short for atom bomb, was in newspaper headlines by Aug. 8, 1945.

a (1)

indefinite article, form of an used before consonants, mid-12c., a weakened form of Old English an "one" (see an). The disappearance of the -n- before consonants was mostly complete by mid-14c. After c. 1600 the -n- also began to vanish before words beginning with a sounded -h-; it still is retained by many writers before unaccented syllables in h- or (e)u- but is now no longer normally spoken as such. The -n- also lingered (especially in southern England dialect) before -w- and -y- through 15c.

It also is used before nouns of singular number and a few plural nouns when few or great many is interposed.

a (2)

as in twice a day, etc., a reduced form of Old English an "on" (see on (prep.)), in this case "on each." The sense was extended from time to measure, price, place, etc. The habit of tacking a onto a gerund (as in a-hunting we will go) was archaic after 18c.

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