51. 简单词 factory 工厂
词根：-fact-(变形：fact/fac, fect/fec, fic/fict, fig, feat/feit, feign)做
(14) deficit 亏空,赤字
实例： If an account or organization is in deficit, more money has been spent than has been received.
(15) fiction 小说
实例：“Truth is better than fiction, and we are strong believers in that.”(New York Times)
(16) fictitious 假想的,编造的
实例：We're interested in the source of these fictitious rumours.
(17) officious 爱管闲事的
实例：They wouldn't welcome any officious interference from the union.
(18) proficient 熟练的,精通的
实例：She's proficient in several languages.
(19) efficacious 有效的
实例：Despite these challenges, efficacious public health interventions are available to prevent thousands of Generation Zika-related disabilities and deaths. (US News, Aug 10, 2016)
(20) suffice 足够,使充分
实例：A cover letter should never exceed one page; often a far shorter letter will suffice.
(21) deficient 不足的;亏空的
记忆方法： deficit 赤字, 亏空
实例：An educational system which fails to teach basic arithmetic is seriously deficient.
(22) sacrifice 牺牲,牺牲品
实例：As such the truth is sacrificed for the twin purposes of political expediency and serving America’s longtime obsession with “black crime.”(Salon April 21, 2017)
(23) figurehead 傀儡
实例：The party's president had become merely a figurehead.
(24) disfigure 损毁外形
实例：Many of the wounded had been badly disfigured.
(25) figment 虚构的事物
实例：The person vanished as silently as if it had simply been a figment of her imagination.
(26) figurative 比喻的, 具象的
实例：His career spanned some 50 years and encompassed both abstract and figurative painting.
(27) feat 功绩, 技术
实例：This bridge is a brilliant feat of engineering.
(28) defeat 击败
实例：As he acknowledged defeat for the healthcare bill, Trump said Republicans would likely pivot to tax reform.( Reuters, March 24, 2017)
(29) counterfeit 仿制品,仿制的
近义词： artificial, fake, copied, imitative
实例：He admitted possessing and delivering counterfeit currency.
(30) forfeit (因违规)丧失,失去
实例：The murderers forfeit their own right to life.
(31) feign 假装
实例：You might feign indifference when you hear about some gossip, but you're probably dying to know.
(32) fickle (爱情,友谊等)变化无常的
近义词：mercurial, erratic, irregular, capricious
实例：Fluctuating prices usually base on a fickle public's demand.
(33) surfeit 过量，过度(尤指饮食而不适; vt./vi.吃得过多, 吃腻)
记忆方法：sur(超过)+ feit(做)→ 做得过多→吃得过多
实例：1. A surfeit of food makes one sick.
2. Steve surfeited himself on jam tarts.
52. 简单词 filial 子女的(见难记词表)
⑴ affiliate 隶属于, 加入, 子公司
实例：He is not affiliated with any political party.
⑵ filigree 金银细工
实例：The word filigree is used to refer to delicate ornamental designs made with gold or silver wire.
⑶ filibuster 阻碍(议案)通过
实例：A group of senators plan to filibuster the measure of changing the current tax laws.
53．简单词 firm 确定的
(1) affirmative 肯定的
实例：He was desperately eager for an affirmative answer.
(2) infirm 虚弱的
实例：We need to care for the elder and infirm.
(3) confirm 确定
实例：What I found both confirmed and shook my perspective.
54. 简单词 conflict 争吵
(1) affliction 痛苦,折磨
实例：Now he was in deep affliction for the loss of his brother.
(2) inflict 折磨
注意：Both afflict and inflict cause pain, but afflict means to cause suffering or unhappiness, something a disease does, but inflict means to force pain or suffering, like if you smack someone upside the head.
实例：The risk is that the GOP’s “rescue mission” will inflict collateral damage on what’s working and cause new problems. ( Seattle Times, Mar 12, 2017 )
55. 简单词 influence 影响
(1) fluent 流利的,液态的
实例：She will be polite and genteel and speak fluent French, Latin, Swahili, Greek and one language that is mostly clicks and glottal stops.
(2) confluent 汇聚的
实例：A confluent small-pox had in all directions flowed over his face.(Washington Post, April 18, 2017)