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我的生词本
在线背单词
查词历史
- 1. a
- 2. a variety of
- 3. a usual thing
- 4. a thick ear
- 5. a taste of one's own medicine
- 6. a song and dance
- 7. a shoulder to cry on
- 8. a pile of shit
- 9. a pair of
- 10. a nine days' wonder
- 11. a near thing
- 12. a nasty piece of work
- 13. a matter of notorious fact
- 14. a lot of
- 15. a lot
- 16. a labour of love
- 17. a good few
- 18. a flea in one's ear
- 19. a fact of life
- 20. a dose of one's own medicine
邻近单词
词形变化: a's
- 正在加载“a”的释义
例句用法 短语词组 近反义词 海词讲解 英英解释
1.
I have engaged a room at this hotel. 
我已经在这个旅馆里预订了一个房间。
2.
You should give it a try.
你应该试一试。
3.
I don't care what a car looks like as long as it gets me from A to B.
我倒不在乎汽车的样子，只要能把我从一处载到另一处就行了。
4.
The function of an adjective is to describe or add to the meaning of a noun.
形容词的作用是描述或增加名词的意思。
5.
China is a developing country.
中国是一个发展中国家。
6.
You're just a good for nothing bum!
你一无是处！
7.
Declension means varying the forms of nouns, pronouns and adjectives in a sentence.
变格是指名词、代词和形容词在句中的形式变化。
8.
Would you do me a favor?
你能帮我一个忙吗？
- with a pinch of salt adv. 有保留地... stand a chance 有希望,有可能...
- a dose of one's own medi... 自己惹来的恶果,自己曾加... flog a dead horse 徒劳无益
- keep a stiff upper lip vi. 坚定不移(顽强不... a bag of bones n. 骨瘦如柴的人...
- once in a blue moon 罕见的,千载难逢地... show a clean pair of heels vi. 逃走(溜之大吉)...
- birds of a feather 同类型的人,志趣相同的人... with a grain of salt adv. 有保留地,持怀...
- bring to a stand 终止 turn over a new leaf 重新开始,改过自新...
- as a matter of fact 事实上 bring to a standstill vt. 结束(使终止,使...
- turn up again like a bad... 不要它偏又回来;挥去复来... at a loose end 无事做,不知所措...
- throw a fit 大发脾气,大为烦恼... blow a fuse vi. 使保险丝熔断(勃...
- cut a poor figure 出丑;露出可怜相... take something with a gr... 将信将疑
【近义词】
- any adj.任何的;adv.... one n.一,一个;adj.一...
- axerophthol n. 抗干眼醇 ampere n. [电]安培
- angstrom n. 埃(长度单位)... angstrom unit n. 埃（长度单位）...
- amp n. 安培数;n. 安宝... adenine n.腺嘌呤
- antiophthalmic factor n. 抗干眼因素,维生素... deoxyadenosine monophosp... 单磷酸脱氧腺苷(DNA的...
- vitamin A 维生素A
【词源解说】
直接源自古英语的an。
【词语用法】
- 通常来说，a 是用在以辅音开首的词前面，an 是用在以元音开首的词前面；
- 可数名词前面用 a（或 an），不可数名词前面不可用a（或 an)，如可以说 a healthy boy，却不可以说 a health；
- 在特定情况下，a（或 an）可以用在复数形式前面:习语中有a few (books)，a great many (books)等表示方法。在表示时间或款项的短语前面，如 a further five minutes。在若干在形式上是复数而在意思上是单数的单词前面，如 a barracks，a links。在美国口语中，如 a good ways，a long ways；
- a（或 an）有时有“一个而不是那所要的一个”的意思。
- I got a letter indeed，but it was from a friend.
事实上，我收到了一封信，但只是一个朋友的来信。
- I wanted to read a book，I did not care whether it was a history，a novel，or a biography.
- I got a letter indeed，but it was from a friend.
- a 与 few 搭配使用时，few 是“很少”，有“几乎没有”的意思。a few 是“若干”，有“颇有几个”的意思。注意，only a few 却等于 few，也是“很少”的意思。
名词 a:
1.
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
2.
any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
3.
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
4.
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
同义词:adenine
5.
the basic unit of electric current adopted under the Systeme International d'Unites
6.
the 1st letter of the Roman alphabet
缩略词
