admin 字母表中的字母a
Letter A in the Alphabet
发音pronunciation: [e]，和汉字“呃”第四声[I]的发音差不多。
英语字母表的第1个字母 the first letter of the English alphabet
1、A
英语字母表的第1个字母 the first letter of the English alphabet
‘Apple’ begins with (an) A.
apple一词以字母a开头。
A大调 A Major
2、A
A音 C大调的第6音或音符 the 6th note in the scale of C major
This song is in Key A.
这首歌唱A调。
A加 A plus
3、A
（学业成绩）第一等，优，甲
the highest mark/grade that a student can get for a piece of work or course of study
Marry got (an) A in/for History.
玛丽的历史成绩得A。
Peter had straight A's all through high school.
彼得读中学时成绩全部是A。
4、A
（表示两个或两个以上可能性中的）第一个
used to represent the first of two or more possibilities
They didn't go for plan A or plan B.
他们不赞成A计划或B计划。
5、A
（代表一个假设的或不指名的人）甲，甲某
used to represent a person, for example in an imagined situation or to hide their identity
They didn't know A or B is guilty.
他们不知道甲或乙应负罪责。
A形房屋 A-frame house
6、A-frame
A形房屋 a house with very steep sides that meet at the top in the shape of the letter A
Mike pointed to an A-frame house that looked small and modest in the midst of all that glory.
麦克指向一座A字构架的屋子，在周围壮观的景象的之下，这座房子显得矮小而又简陋。
高级证书考试 advanced level
7、A level
高级证书考试（英国中学单科考试，通常在毕业年级进行）
a British exam taken in a particular subject, usually in the final year of school at the age of 18
Jim needs 5 A levels to get onto this university course.
吉姆要参加这个大学教程，就需要通过5科高级证书考试。
What A levels are they doing?
他们在准备哪些科目的高级证书考试？
They're doing Science A level.
我在准备自然科学高级证书考试。
8、A-road
A级公路（略次于高速公路，但较B级公路宽直），干线公路（英国公路代号，后接数字）
(in Britain) a road that is less important than a motorway , but wider and straighter than a B-road
the A27 to the town
通往城里的A27号（干线）公路
9、（除美国外，用于数字前表示标准纸张尺寸）A…号纸
used (but not in the US) before numbers which show standard metric sizes of paper
a sheet of A4 paper (= 297×210mm)
一张A4号纸（= 297 × 210毫米）
A3 (= 420×297mm)
A3号纸（= 420 × 297毫米）
A5 (= 210×148mm)
A5号纸（= 210 × 148毫米）
10、from A to B
从一地到另一地 from one place to another
For him a bike is just a means of getting from A to B.
在他看来，自行车只不过是从一地到另一地的代步工具。
11、from A to Z
从头到尾；彻底地；完全 including everything there is to know about sth.
Tiger knew Chinese from A to Z.
泰格通晓汉语。
红桃A：Ace Of Hearts
12、Heart A
红桃A：Ace Of Hearts
13、A货
1）在外贸行业，是仿冒产品的统称，通常为服装皮包鞋等用品。
In the foreign trade industry, is a generic term for counterfeit products, usually for clothing, leather bags, shoes and other supplies.
2）A品是出售前的正品，A品一旦在正规销售渠道上市，就是正品。
A product is the original product before sale. Once a product is listed in the regular sales channel, it is the original product.
14、A片
adult movie 成人电影
Do they sell adult movie?
他们卖A片吗？
15、A = amp = ampere
安，安培(电流单位，缩略形式为 amp或A)
An ampere is a unit which is used for measuring electric current. The abbreviation amp is also used.
安培是用来测量电流的单位。缩写amp也被使用。