1AA,a/eI;e/n(plA's,a's/eIz;ez/)1thefirstletteroftheEnglishalphabet英语字母表的第一个字母:`Ann'beginswith(an)A/`A'.Ann一字以A字母开始.2(music音)thesixthnoteinthescaleofCmajorC大调音阶中的第六音或音符.3academicmarkindicatingthehigheststandardofwork学业成绩达最高标准的评价符号:get(an)A/`A'inbiology生物（学科）得A.4(usedtodesignatearangeofstandardpapersizes用以标明一系列标准纸张的规格):[attrib作定语]anA4folderA4纸张大小的文件夹即297x210mm.5(idm习语)A1/7eI5wQn;`e`wQn/(infml口)excellent;firstrate极好的;头等的;第一流的:an7A15dinner一顿美餐*|I'mfeelingA1,ieverywell.我身体好极了.fromAtoBfromoneplacetoanother从一处到另一处:Idon'tcarewhatacarlookslikeaslongasitgetsmefromAtoB.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.fromAtoZfrombeginningtoend;thoroughly从头到尾;彻底地:knowasubjectfromAtoZ精通一科目.A-OK/7eIEU5keI;9eo`ke/adj[usupred通常作表语](USinfml口)emphaticallyOK极佳;顶呱呱.Cf参看okay.A-road/5eIrEUd;`e9rod/n(Brit)majorroad,lessimportantthanamotorwaybutusuwiderandstraighterthanaB-roadA级公路（重要性次於高速公路的主干公路,但通常比B级公路宽且直）:There'sagoodA-roadgoingNorth--theA1.有一条良好的A级公路通往北方--A级1号公路.A-siden(musicrecordedonthe)firstormainsideofasingle-playgramophonerecord（单曲唱片的）A面,正面（上的乐曲）.a/E;E;strongform强读式eI;e/(alsoan/En;En;strongform强读式An;An/)indefart(Theformaisusedbeforeconsonantsoundsandtheformanbeforevowelsounds.Bothareusedbefore[C],[Cgp]or[sing]nsthathavenotpreviouslybeenmadespecific.a用於辅音前,an用於元音前.两者均用於前文未曾确指的可数单数名词或集合名词之前.)1one一（个）:aman,hotel,girl,committee,unit,U-turn（一个）男人,旅馆,姑娘,委员会,单位,U形转弯(Cf参看somemen,hotels,girls,etc)*|anegg,aunt,uncle,hour,X-ray,MP,L-plate（一个）蛋,姑姑,叔叔,小时,X光照片,下院议员,L字牌(Cf参看someeggs,aunts,uncles,hours,etc)*|Icanonlycarrytwoatatime.我一次只能携带两个.*|There'sabookonthetableisthattheoneyouwant?桌子上有一本书--是不是你要的那一本?2(usedwithanabstractnthatisrestrictedbythephrasewhichfollowsit与抽象名词连用时,该名词...
