詞語：a
a是什麼意思
簡明英漢詞典
a
[ei]
art.
一
n.
字母A
基本詞義
A
abbr.
(1) 安 (ampere)
(2) As 或 A's
美國傳統詞典[雙解]
a
a 1或 A
AHD:[3]
D.J.[ei]
K.K.[e]
n.（名詞）
【複數】 a's或 A's
(1)The first letter of the modern English alphabet.
A字母：現代英語字母表中第一個字母
(2)Any of the speech sounds represented by the letter a.
A的發音：a 所表示的讀音
(3)The first in a series.
序列中的第一
(4)The best or highest in quality or rank:
甲等，甲級：在質量、等級上最好或最高：
grade A milk.
優質牛奶
(5)Something shaped like the letter A.
A字形：形狀象字母A的物體
(6)Music
【音樂】
(7)The sixth tone in the scale of C major or the first tone in the relative minor scale.
A音或A調：C大調音階中的第六個音或C小調音階中的第一個音
(8)A key or scale in which A is the tonic.
A調音階：以A調為主音調的音鍵或音階
(9)A written or printed note representing this tone.
A調的音符：代表A調的手寫體或印刷體的音符
(10)A string, key, or pipe tuned to the pitch of this tone.
發A調的樂器：調至A調音高的絃樂器、琴鍵或管樂器
(11)A One of four types of blood in the ABO system.
A A型血：ABO系統中四種血型的一種
基本詞義
a
a 2
AHD:[…] [3 ] 重讀時
D.J.[*][ei ]重讀時
K.K.[*][e ]重讀時
indef.art.（不定冠詞）
(1)Used before nouns and noun phrases that denote a single but unspecified person or thing:
非特指的一個：用在名詞或名詞短語前，表示單數及不確定的人或物：
a region; a person.
一個地區，一個人
(2)Used before terms, such as few or many, that denote number, amount, quantity, or degree:
用在如few 或 many 之前，表示總和、總數、數量或程度：
only a few of the voters; a bit more rest; a little excited.
只有少許投票者；稍微多休息會兒；有些激動
(3)Used before a proper name to denote a type or a member of a class:
用在一專有名稱前來表示一類中的一種或一員：
the wisdom of a Socrates.
蘇格拉底式的智慧
(4)Used before a mass noun to indicate a single type or example:
用於物質名詞前表示單一種類或事例：
a dry wine.
無甜味葡萄酒
(5)The same:
同樣，同類：
birds of a feather.
同一種類的鳥
(6)Any:
任何一個：
not a drop to drink.
滴水未沾
語源
(1)Middle English
中古英語
(2)variant of an [an] * see an 1
an的變體 [不定冠詞an] *參見 an1
用法
In modern written English, the form a is used before a word beginning with a consonant sound, however it may be spelled (a frog, a university, a euphemism ). The form an is used before a word beginning with a vowel sound ( an orange, an hour ). At one time, an was an acceptable alternative before words beginning with a consonant sound but spelled with a vowel ( an one, an united appeal ), but this usage is now entirely obsolete. · An was also once a common variant before words beginning with h in which the first syllable was unstressed; thus 18th-century authors wrote either a historical or an historical but a history, not an history. This usage had a phonetic justification inasmuch as the initial h in words such as historical and heroic was often dropped, a practice that was largely abandoned by the late 19th century in educated speech. By 1926 H.W. Fowler could regard the continued use of an before such words as pedantic. Nowadays it survives primarily before the word historical; one rarely encounters a reference to an hysterectomy or an hereditary trait. The use of a phrase like an historic opportunity is a harmless adornment in formal writing.
在現代書面英語中a 的形式用於以輔音開頭的單詞前， 但這個詞可能被拼成（a frog，a university，a euphemism ）。 an 的形式用於以元音開頭的詞前（ an orange，an hour ）。 有一度an 用於以輔音開頭但拼寫形式為元音的單詞前的形式也被認可（ an one，an united appeal ）， 但這種用法現在已被廢棄了。An 曾是用於第一個音節不重讀，且以 h 為開頭的單詞前的一種常見變體形式； 所以18世紀的作家既可用a historical 也可用 an historical， 但不可用 a history 也不可用 an history。 當h 在這樣一些單詞，如 historical 和 heroic 中作為起首字母而又不發音時，這種用法在語音學上是合理的。 這種用法在19世紀末的高雅用語中已基本廢棄了。1926年時H·W·福勒還認為an 繼續在這些單詞前使用太具學究氣了。 現在這種用法主要在historical 前時還保存使用； 在an hysterectomy 或 an hereditary trait 之前則極為少見。 在正式的書面語中，像an historic opportunity 這種用法也不失為一種裝飾
基本詞義
a
a 3
AHD:[…]
D.J.[*]
K.K.[*]
prep.（介詞）
In every; to each; per:
單一；每一；每：
once a month; one dollar a pound.
每月一次；一磅一美元
語源
(1)Middle English
中古英語
(2)from Old English an [in] * see on
源自 古英語 an [在…裡] *參見 on
基本詞義
a
a 4
AHD:[…]
D.J.[*]
K.K.[*]
v.aux.Informal （助動詞）【非正式用語】
Have:
相當於助動詞have：
He'd a come if he could.
如果他能來的話，他早就來了
語源
(1)Middle English
中古英語
(2)alteration of haven [to have] * see have
haven的變化 [有] *參見 have
基本詞義
a
a 5
abbr.（略語）
(1)Also a. Absent.
也作 a. Absent.
(2)Physics Acceleration.
【物理學】 Acceleration.
(3)Also a. Are [measurement]
也作 a. Are[測量]
基本詞義
A
A 或 A.
abbr.（略語）
(1)Also a. or A. Acre.
也作 a. 或 A. Acre.
(2)Ammeter.
Ammeter.
(3)Ampere.
Ampere.
(4)Or ? Angstrom.
或 ? Angstrom.
(5)Also a. or A. Area.
也作 a. 或 A. Area.
現代英漢詞典
a 1
[E, eI]
indefinite art.
(1)（用在以元音開始的詞前為 an [An]）
(2)一
a pen
一枝筆
a car
一輛汽車
a dollar
一美元
a dozen pens
一打筆
an egg
一個雞蛋
Can I have a tea and two coffees.
請給我一杯茶和兩杯咖啡。
(3)（一類事物中的）任何一個
not a one
沒有一個
Let's go to a Chinese restaurant.
我們去一家中餐餐館。
We saw a good film on TV last night.
昨天晚上我們在電視中看到了一個好片子。
(4)任何
A square has four sides.
正方形有四條邊。
A dog is an animal.
狗是動物。
基本詞義
a 2
prep.
每一
twice a day
每日兩次
three pounds a week
每週3英鎊
two dollars a dozen
每打兩元
ninety kilometers an hour
每小時90公里
習慣用語
from A to Z
從頭至尾；徹底地，完全地
基本詞義
A 1
[eI]
n.
As 或 A's
(1)英語字母表的第1個字母 （亦作 a）
(2)〈音〉C大調的第6音，A音
(3)〈音〉A調
(4)甲，第一
(5)〈數〉第一個未知數 (= a)
基本詞義
A 2
[eI]
abbr.
(1)安 (ampere)
(2)答案 (answer)
基本詞義
A 3
[eI]
abbr.
(BrE.)
A級影片（十四歲以下兒童不宜觀看）
現代英漢綜合大辭典
a
(1)=about;
(2)absolute;
(3)acre;
(4)active;
(5)adjective;
(6)after;
(7)anonymous;
(8)anno([拉]=in the year of);
(9)ante([拉]=before)
基本詞義
A
a與e的連寫形式(源自拉丁語和拉丁化的希臘語, 現多簡化為e、ae, 如 encyclopAdia 可拼作 encyclopaedia 或encyclopedia
[七國語言]英漢地質大詞典
a
a, 年
美國傳統詞典
a
a 1or A
AHD:[3]
D.J.[ei]
K.K.[e]
n.
pl. a'sor A's
(1)The first letter of the modern English alphabet.
(2)Any of the speech sounds represented by the letter a.
(3)The first in a series.
(4)The best or highest in quality or rank:
grade A milk.
(5)Something shaped like the letter A.
(6)Music
(7)The sixth tone in the scale of C major or the first tone in the relative minor scale.
(8)A key or scale in which A is the tonic.
(9)A written or printed note representing this tone.
(10)A string, key, or pipe tuned to the pitch of this tone.
(11)A One of four types of blood in the ABO system.
基本詞義
a
a 2
AHD:[…] [3 ] when stressed
D.J.[*][ei ]when stressed
K.K.[*][e ]when stressed
indef.art.
(1)Used before nouns and noun phrases that denote a single but unspecified person or thing:
a region; a person.
(2)Used before terms, such as few or many, that denote number, amount, quantity, or degree:
only a few of the voters; a bit more rest; a little excited.
(3)Used before a proper name to denote a type or a member of a class:
the wisdom of a Socrates.
(4)Used before a mass noun to indicate a single type or example:
a dry wine.
(5)The same:
birds of a feather.
(6)Any:
not a drop to drink.
語源
(1)Middle English
(2)variant of an [an] * see an 1
用法
In modern written English, the form a is used before a word beginning with a consonant sound, however it may be spelled (a frog, a university, a euphemism ). The form an is used before a word beginning with a vowel sound ( an orange, an hour ). At one time, an was an acceptable alternative before words beginning with a consonant sound but spelled with a vowel ( an one, an united appeal ), but this usage is now entirely obsolete. · An was also once a common variant before words beginning with h in which the first syllable was unstressed; thus 18th-century authors wrote either a historical or an historical but a history, not an history. This usage had a phonetic justification inasmuch as the initial h in words such as historical and heroic was often dropped, a practice that was largely abandoned by the late 19th century in educated speech. By 1926 H.W. Fowler could regard the continued use of an before such words as pedantic. Nowadays it survives primarily before the word historical; one rarely encounters a reference to an hysterectomy or an hereditary trait. The use of a phrase like an historic opportunity is a harmless adornment in formal writing.
基本詞義
a
a 3
AHD:[…]
D.J.[*]
K.K.[*]
prep.
In every; to each; per:
once a month; one dollar a pound.
語源
(1)Middle English
(2)from Old English an [in] * see on
基本詞義
a
a 4
AHD:[…]
D.J.[*]
K.K.[*]
v.aux.Informal
Have:
He'd a come if he could.
語源
(1)Middle English
(2)alteration of haven [to have] * see have
基本詞義
a
a 5
abbr.
(1)Also a. Absent.
(2)Physics Acceleration.
(3)Also a. Are [measurement]
基本詞義
A
A or A.
abbr.
(1)Also a. or A. Acre.
(2)Ammeter.
(3)Ampere.
(4)Or ? Angstrom.
(5)Also a. or A. Area.
英漢船舶大詞典
a
n.非
基本詞義
a
n.非
朗文英漢綜合電腦詞典
A
= Ampere,【電】安培; = Angstrom, 埃(=0.0000000001米)
航空英語縮寫詞典
A
Aero 航空的,飛行的,空中的
基本詞義
A
Areas 地區,區域
基本詞義
A
Aear 區域
基本詞義
A
Air 空氣
基本詞義
A
Alternalte 備用的
基本詞義
A
Amber 琥珀色
基本詞義
A
Ampere 安培
基本詞義
A
Amber 琥珀色
基本詞義
A
Ampere 安培
基本詞義
A
Angstrom 埃(波長)
基本詞義
A
Annual 年度
基本詞義
A
Approach lighting 進近燈
基本詞義
A
Arrive, Arrival 到達
基本詞義
A
Ampere (s) 安培
英漢心理學大詞典
A
型性格
基本詞義
A
S
基本詞義
A
type
基本詞義
A
chromosome:A
基本詞義
A
BX
基本詞義
A
BX
基本詞義
A
S
相關：a的翻译及解釋