Frontside,Flipside,Category accelerate ,加快,A acknowledge ,承認,A admission ,入學,A acceleration ,加速度,A admit ,承認,A accent ,口音,A acne ,痤瘡,A adolescence ,青春期,A accept ,接受,A acquaint ,熟悉,A adolescent ,青春期,A a/an ,一個,A acceptable ,可接受,A acquaintance ,熟人,A adopt ,通過,A abandon ,放棄,A acceptance ,驗收,A acquire ,收購,A adore ,崇拜,A abbreviate ,縮寫,A access ,進入,A acquisition ,採集,A adult ,成人,A abbreviation ,縮寫,A accessible ,查閱,A acre ,英畝,A adulthood ,成年,A abdomen ,腹部,A accessory ,配件,A across ,全國,A advance ,前進,A abide ,遵守,A accident ,意外,A act ,法,A advanced ,先進,A ability ,能力,A accidental ,偶然,A action ,行動,A advantage ,優勢,A able ,能,A accommodate ,容納,A active ,活躍,A adventure ,冒險,A abnormal ,異常,A accommodation ,住宿,A activist ,活動家,A adverb ,副詞,A aboard ,船上,A accompany ,伴隨著,A activity ,活動,A advertise/ ,廣告,A abolish ,取消,A accomplish ,完成,A actor/actress ,演員/女演員,A aboriginal ,原住民,A actual ,實際,A advertiser ,廣告商,A aborigine ,土人,A accord ,協議,A acute ,急性,A advice ,諮詢,A abortion ,流產,A accordance ,按照,A adapt ,適應,A advise ,提醒,A abound ,俯拾皆是,A according to ,據,A adaptation ,至,A adviser/advisor ,適應,A about ,顧問/顧問,A accordingly ,約,A add ,據此,A advocate ,放入,A above,主張,A account , 上述帳戶,A addict ,吸毒者,A affair ,內政,A account ,帳戶,A addiction ,成癮,A affect ,影響,A abroad ,國外,A accountable ,問責,A addition ,除了,A affection ,親情,A abrupt ,突然,A accountant ,會計師,A additional ,額外,A affectionate ,有情,A absence ,缺席,A accounting ,會計,A address ,地址,A affirm ,申明,A absent ,缺席,A accumulate ,累積,A adequate ,充足,A afford ,負擔不起,A absentminded ,心不在焉的,A accumulation ,積累,A adjective ,形容詞,A afraid ,害怕,A absolute ,絕對,A accuracy ,精度,A adjust ,調整,A after ,後,A absorb ,吸收,A accurate ,準確,A administer/administrat ,管理 ,A afternoon ,下午,A abstract ,摘要,A accusation ,指控,A afterward ,事後,A abstraction ,抽象,A accuse ,指責,A administration ,政府,A again ,再次,A absurd ,荒謬,A accustom ,習慣,A administrative ,行政,A against ,反對,A abundance ,豐度,A ace ,王牌,A administrator ,管理員,A age ,年齡,A abundant ,豐富,A ache ,乙烯膽鹼酯,A admirable ,令人欽佩,A agency ,機構,A abuse ,濫用,A achieve / ,實現,A admiral ,海軍上將,A agenda ,議程,A academic ,學術,A admiration ,欽佩,A agent ,代理,A academy ,學院,A acid ,酸,A admire ,佩服,A aggression ,侵略,A allow ,允許,A analyst ,分析師,A anyway ,無論如何,A aggressive ,侵略性,A allowance/pocket ,津貼袋,A money ,錢,A analytical ,分析,A anywhere/anyplace ,隨時隨地 ,A ago ,前,A analyze ,分析,A apart ,除了,A agony ,痛苦,A ally ,盟友,A ancestor ,始祖,A apartment ,公寓,A agree ,同意,A almond ,杏仁,A anchor ,主播,A ape ,猿,A agreeable ,合意,A almost ,幾乎,A ancient ,古,A apologize ,道歉,A agricultural ,農業,A alone ,單,A and ,及,A apology ,道歉,A agriculture ,農業,A along ,沿,A anecdote ,軼事,A apparent ,表觀,A ahead ,前進,A alongside ,旁邊,A angel ,天使,A appeal ,上訴,A AI/artificial ,愛/人造,A intelligence ,情報,A aloud ,自言自語,A anger ,憤怒,A appear ,看來,A aid ,援助,A alphabet ,字母表,A angle ,角,A appearance ,外觀,A AIDS/acquired ,艾滋病/後天,A immune ,免疫,A already ,已經,A angry ,憤怒,A appetite ,胃口,A deficiency ,缺失,A syndrome ,綜合徵,A also ,還,A animal ,動物,A applaud ,鼓掌,A aim ,目的,A alter ,改變,A animate ,動畫,A applause ,掌聲,A air ,空氣,A alternate ,候補,A ankle ,踝,A apple ,蘋果,A air-conditioner ,#NAME?,A alternative ,另類,A anniversary ,週年,A appliance ,家電,A aircraft ,飛機,A although ,雖然,A announce ,公佈,A applicable ,適用,A airline ,航空公司,A altitude ,海拔,A annoy ,煩擾,A applicant ,申請人,A airmail ,空郵,A altogether ,共,A annoyance ,煩擾,A application ,應用,A airplane/plane ,飛機/飛機,A aluminum ,鋁,A annual ,年度,A apply ,申請,A airport ,機場,A always ,總是,A anonymous ,無名氏,A appoint ,任命,A airtight ,不透氣,A am ,上午,A another ,另一,A airway ,氣道,A a.m./am/A.M./AM ,上午/時/分/時,A answer ,答案,A appoint ,任命,A aisle ,過道,A amateur ,業餘,A ant ,螞蟻,A appreciate ,欣賞,A alarm ,警鐘,A amaze ,驚奇,A Antarctic/antarctic ,南極/南極,A appreciation ,讚賞,A album ,相冊,A ambassador ,大使,A apprentice ,學徒工,A alcohol ,酒精,A ambiguity ,歧義,A antenna ,天線,A approach ,辦法,A alcoholic ,酒類,A ambiguous ,曖昧,A anthem ,國歌,A appropriate ,適當,A alert ,警報,A ambition ,野心,A antibiotic ,抗生素,A approval ,審批,A algebra ,代數,A ambitious ,雄心勃勃,A antibody ,抗體,A approve ,批准,A alien ,外國人,A ambulance ,救護車,A anticipate ,預期,A approximate ,近似,A alienate ,疏遠,A ambush ,伏擊,A anticipation ,期待,A alike ,同樣,A amiable ,和藹可親,A antique ,古董,A April/Apr. ,4月/月。,A alive ,活著,A amid/amidst ,中/中,A antonym ,反義詞,A apron ,圍裙,A all ,所有,A among ,其中,A anxiety ,焦慮,A apt ,亞太,A allergic ,過敏,A amount ,金額,A anxious ,著急,A aptitude ,性向,A allergy ,過敏,A ample ,充足,A any ,任何,A aquarium ,水族館,A alley ,巷,A amplify ,放大,A arch ,拱,A alliance ,聯盟,A amuse ,逗,A anybody/anyone ,人/人,A architect ,建築師,A alligator ,鱷魚,A analects ,論語,A architecture ,建築,A allocate ,劃撥,A analogy ,比喻,A anyhow ,不管怎樣,A Arctic/arctic/ ,北極/北極/,A are ,是,A analysis ,分析,A anything ,什麼,A area ,面積,A assault ,毆打,A anytime ,隨時,A arena ,舞台,A assemble ,組裝,A attract ,吸引,A argue ,爭辯,A assembly ,大會,A attraction ,景點,A arise ,出現,A assert ,斷言,A attractive ,吸引力,A arithmetic ,算術,A assess ,評估,A auction ,拍賣,A arm ,手臂,A asset ,資產,A audience ,觀眾,A arm ,手臂,A assign ,轉讓,A audio ,音頻,A armchair ,扶手椅,A assist ,協助,A auditorium ,禮堂,A armor ,盔甲,A assistance ,援助,A August/Aug. ,8月/日。,A arms ,武器,A assistant ,助理,A aunt/auntie/aunty ,姑姑/阿姨/ ,A army ,陸軍,A associate ,準,A authentic ,正宗,A around ,靠近,A association ,協會,A author ,作者,A arouse ,調動,A assume ,假定,A authority ,管理局,A arrange ,安排,A assumption ,假設,A authorize ,授權,A arrest ,逮捕,A assurance ,保證,A autobiography ,自傳,A arrival ,到達,A assure ,保證,A autograph/signature ,簽名/簽名,A arrive ,到達,A asthma ,哮喘,A arrogant ,傲慢,A astonish ,擎著,A automatic ,自動,A arrow ,箭,A astray ,誤入歧途,A automobile/auto ,汽車/汽車,A art ,藝術,A astronaut ,宇航員,A autonomy ,自治,A artery ,動脈,A astronomer ,天文學家,A autumn/fall ,秋天/下降,A article ,文章,A astronomy ,天文學,A auxiliary ,輔警,A article ,文章,A essay ,徵文,A asylum ,庇護,A available ,可用,A articulate ,闡明,A at ,在,A avenue ,道,A artifact ,偽,A athlete ,運動員,A average ,平均,A artificial ,人工,A athletic ,田徑,A aviation ,航空,A artist ,藝術家,A ATM/automatic ,自動出納機/自動,A teller ,櫃員,A avoid ,避免,A artistic ,藝術,A machine ,機,A await ,等待,A as ,作為,A atmosphere ,氣氛,A awake ,甦醒,A atom ,原子,A awaken ,喚醒,A ascend ,繼承皇位,A atomic ,原子,A award ,獎,A ash ,灰分,A attach ,重視,A aware ,知道,A ashamed ,慚愧,A attack ,攻擊,A away ,遠離,A aside ,預留,A attain ,達到,A awe ,敬畏,A ask ,請問,A attempt ,企圖,A awesome ,令人敬畏,A asleep ,睡夢中,A attend ,出席,A awful ,可怕,A aspect ,環,A attendance ,列席,A awhile ,一段時間,A aspirin ,阿司匹林,A attendant ,服務員,A awkward ,尷尬,A ass ,驢,A attention ,注意,A ax/axe ,斧,A assassinate ,暗殺,A attic ,閣樓,A attitude ,態度 ,A