abolish

同义：cancel , destroy , put an end to , wipe out , do away with , extinguish
辨析：abolish: 意为“废止，废除（法律、制度、传统、风俗等）”。this novel has a great effect on abolishing slavery.
cancel: 意为“取消，撤销，删除”。i cancelled the appointment with my doctor.
反义：establish
练习：there are many bad customs and laws that ought to be
a. cancelled b. abolished c. repealed d. eliminated
派生：
abolition n. (法律、习俗、死刑等的)废除，废止；消灭：～ of war 消灭战争
abolitionism n. 废除主义；废除（黑奴）主义
abolitionist n. 废除主义者；主张废除死刑者；废奴主义者
练习答案：
选 b abolish多指废除不合理的，而通常又是长期存在的制度，风俗等；cancel指临时取消已安排的计划、会议、旅行、球赛等。如：cancel a plan / a hotel reservation / a trip / a football game等；repeal指废止法令、判决或决议等；eliminate指消除、删除、淘汰（竞争者）。