hortative : encourage :: exculpatory : absolve   

absolve <>inculpate

abstain       vi. 自制,戒绝,弃权,避免 

to refrain deliberately and often with an effort of self-denial from an action or practice   

mandatory : comply :: forbidden : abstain     
abstemious    adj. 有节制的，节俭的    

marked by restraint especially in the consumption of food or alcohol  

abstemious : indulge :: austere : decorate   { intransigence:control}   

reticent : talk :: abstemious : gorge 

abstract      a. 抽象的，不具体的；n. 摘要，提要 

having only intrinsic form with little or no attempt at pictorial representation or narrative content    

abstract <> elaborate

abstruse      adj.深奥的 

diffiult to comprehend : RECONDITE       

abstruse <> accessible / patent 

abuse         n./v. 辱骂，滥用?   

to attack in words : REVILE 

diatribe : abuse :: burlesque : mockery     

polemic : disputatious :: invective : abusive    

accede        v.同意 

to express approval or give consent : give in to a request or demand      

accelerate    vt.vi. 加速   

to move faster : gain speed 

expedite : process :: accelerate : pace   

accelerate <> retard

accessible    a. 易接近的,可进入的,易受影响的,可理解的  

capable of being understood or appreciated       

abstruse <> accessible / patent 

accessory     n. 附件    

a thing of secondary or subordinate importance : ADJUNCT       

accessory <> of primarily importance 

accidental    a. 意外的,偶然的  

occurring unexpectedly or by chance    

inventiveness : accidental :: effect : casual      
safeguard : accident :: hedge : loss   

intentional:accidental:arrogant:humble

acclimate     vt.使习惯于新环境 

to adapt to a new temperature, altitude, climate, environment, or situation

acclimate <> make unfamiliar with

accolade      n. 推崇备至，赞扬 an expression of praise     

accolade <> cutting remark/speak ill / derogate/denounce

deplore <> accolade/extol

accomodate    v. 容纳,留宿,使...适应
to provide with something desired, needed, or suited (as a helpful service, a loan, or lodgings) 

obliterate:remove::accomodate:supply {convey:conduct}

accomplice    n. 共犯,同谋  

one associated with another especially in wrongdoing   

accost        vt.向人搭话   

to approach and speak to often in a challenging or aggressive way

accost:approach ::?? 

accountability  n. 有责任,有义务 

an obligation or willingness to accept responsibility or to account for one’s actions

accrete       v. 共生，附着，增加  

ACCUMULATE

accrete : growth :: erode : destruction   

accumulate    vt.vi. 积聚,堆积  

to gather or pile up especially little by little : AMASS      

accumulation <> dissipation

accuse        v. 责备，控告，谴责  

to charge with a fault or offense : BLAME     

acme          n．顶点，极点 
the highest point or stage