久久国产欧美日韩精品_亚洲国产激情_精品一区二区三区四区_免费91_精品久久免费_97在线观_韩国午夜理伦三级在线观看按摩房

a

英 [?; e?] 美[e]
  • n. 字母A;第一流的;學業成績達最高標準的評價符號
  • abbr. [物]安(ampere)

中文詞源


a 一 (個)

不定冠詞an在發展過程中出現的縮略形式,應用于首字母為輔音的單詞及h發音單詞。

英文詞源


a
a: [OE] The indefinite article in English is ultimately identical with the word one (as is the case, even more obviously, in other European languages – French un, German ein, and so on). The ancestor of both a(n) and one was ān, with a long vowel, but in the Old English period it was chiefly used for the numeral; where we would use a(n), the Anglo-Saxons tended not to use an article at all. ān begins to emerge as the indefinite article in the middle of the 12th century, and it was not long before, in that relatively unemphatic linguistic environment, its vowel became weakened and shortened, giving an.

And at about the same time the distinction between an and a began to develop, although this was a slow process; until 1300 an was still often used before consonants, and right up to 1600 and beyond it was common before all words beginning with h, such as house.

=> one
a (1)
indefinite article, mid-12c., a variation of Old English an (see an) in which the -n- began to disappear before consonants, a process mostly complete by mid-14c. The -n- also was retained before words beginning with a sounded -h- until c. 1600; 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.
a (2)
as in twice a day, etc., from Old English an "on," 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) died out 18c.

雙語例句


1. Liver and kidney are particularly rich in vitamin A.
肝臟和腎臟富含維生素A

來自柯林斯例句

2. Details are available from the Hon. Sec. A.R. Bushby.
詳情可咨詢名譽秘書A.R.布什比。

來自柯林斯例句

3. I was assigned to Troop A of the 10th Cavalry.
我被派往第10騎兵隊的A連。

來自柯林斯例句

4. Passes are graded from "A" down to "E".
及格分為A到E幾等。

來自柯林斯例句

5. Use only clean, Grade A, perfect eggs.
只用表面干凈、無磕碰的A級雞蛋。

來自柯林斯例句

字典 詞典 成語 古詩 造句 英語
主站蜘蛛池模板: 国产一区二区福利久久 | 欧美性俄罗斯18精品 | 日本成熟视频tube~be | 国产黄色自拍 | 99精品免费视频 | 99精品在线播放 | 97人人模人人爽人人喊6 | xxx性日本| 亚洲欧美日韩中文字幕在线不卡 | 久草资源福利 | jizz大全jizz大全jizz | 亚洲国产日韩在线人高清不卡 | 国产亚洲3p一区二区三区 | 韩剧伦理在线观看 | 日本永久免费 | 国产欧美一区二区三区视频在线观看 | 日韩久久久精品中文字幕 | 亚洲一区二区三区免费视频 | 99在线观看视频免费精品9 | 欧美wwwwww| 久久www免费人成_看 | 久久成人精品免费播放 | 97碰在线 | 全国最大色成免费网站 | 国产在线精品一区二区夜色 | 国产区亚洲区 | 日韩一区二区超清视频 | 中文字幕日韩欧美一区二区三区 | 欧美视频在线观看一区二区 | 国产综合色在线视频区 | 欧美日韩一区二区三区视频在线观看 | 老头chⅰnese老头群国产 | 人人艹人人干 | 免费的黄色软件大全 | 亚洲高清中文字幕一区二区三区 | 久久精品国产日本波多麻结衣 | 亚洲免费一级视频 | 欧美黑人xxxx猛牲大交 | jizz.日本| 天堂久久久久久中文字幕 | 中文字幕有码视频 |