A

noun

/eɪ/

(also a)

(plural As, A’s, a’s

/eɪz/

)

Idioms

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[countable, uncountable] the first letter of the English alphabet
- ‘Apple’ begins with (an) A/‘A’.
A
[countable, uncountable] (music) the 6th note in the scale of C major
[countable, uncountable] A (in/for something) a grade that a student can get for a piece of work or course of study that shows that it is excellent
- She got (an) A in biology.
- He had straight A's (= nothing but A's) all through high school.
A
[uncountable] used to represent the first of two or more possibilities
- Shall we go for plan A or plan B?
A
[uncountable] used to represent a person, for example in an imagined situation or to hide their identity
- Assume A knows B is guilty.

A

symbol

/eɪ/

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used in the UK before a number to refer to a particular important road
- the A34 to Newbury
used (but not in the US) before numbers that show standard metric sizes of paper
- a sheet of A4 paper (= 297×210mm)
- A3 (= 420×297mm)
- A5 (= 210×148mm)

单词	A
释义	A noun /eɪ/ /eɪ/ (also a) (plural As, A’s, a’s /eɪz/ /eɪz/ ) Idioms jump to other results [countable, uncountable] the first letter of the English alphabet ‘Apple’ begins with (an) A/‘A’. A [countable, uncountable] (music) the 6th note in the scale of C major [countable, uncountable] A (in/for something) a grade that a student can get for a piece of work or course of study that shows that it is excellent She got (an) A in biology. He had straight A's (= nothing but A's) all through high school. A [uncountable] used to represent the first of two or more possibilities Shall we go for plan A or plan B? A [uncountable] used to represent a person, for example in an imagined situation or to hide their identity Assume A knows B is guilty. see also A-frame, A level, A-road Idioms from A to B from one place to another For me a car is just a means of getting from A to B. from A to Z including everything there is to know about something He knew his subject from A to Z. A symbol /eɪ/ /eɪ/ jump to other results used in the UK before a number to refer to a particular important road the A34 to Newbury used (but not in the US) before numbers that show standard metric sizes of paper a sheet of A4 paper (= 297×210mm) A3 (= 420×297mm) A5 (= 210×148mm) A abbreviation /eɪ/ /eɪ/ jump to other results (in writing) amp
随便看	devoid devolution devolve devolved devolve on devolve-on devolve to devolve-to devolve upon devolve-upon Devon devon devote devoted devotedly devotee devote to devote-to devote yourself to devote-yourself-to devotion devotional devour devout devoutly