1. visionary [ˈvɪʒənri]
adj.幻影的，幻想的，有远见卓识的；n.空想家，梦想者，预言家
a person who has a religious or spiritual experience in which they see a holy person who is not living or they see a holy event that cannot be explained scientifically
参考例句：
1. That's why people call Verne a visionary.那就是为什么人们称维尼为梦想家的原因。
2. Ruth is a visionary girl;she spends her time daydreaming.露丝是个好幻想的女孩，她常把时间消磨于做白日梦。
2. citrus [ˈsɪtrəs]
n.柑桔属果树
any of a group of plants which produce acidic (= containing acid ) fruits with a lot of juice
参考例句：
1. The frost last week was a great calamity to the citrus industry.上周的霜冻对柑橘种植业是一场大灾难。
2. Citrus growers were cautioned to protect the fruit from frost.种柑橘者受到防霜保橘的劝告。
3. sunstroke [ˈsʌnstrəʊk]
n.中暑
an illness caused by spending too much time in strong heat and light from the sun
参考例句：
1. One who works under the hot sun is liable to sunstroke.在炎热的阳光底下工作很容易引起中暑。
2. Someone who is suffering from sunstroke feels dizzy and has a high temperature.中暑的人会头晕、发高烧。
4. indelible [ɪnˈdeləbl]
adj.擦试不掉的，不可磨灭的
describes a mark or substance that is impossible to remove by washing or in any other way
参考例句：
1. The experience made an indelible impression on me.那次经历使我难以忘怀。
2. It will remain an indelible stain on his memory.这将成为他记忆中一个不可磨灭的污点。
5. cur [kɜ:(r)]
n.杂种狗，坏种
a mongrel (= dog of mixed type ), especially one that is frightening or fierce
参考例句：
1. A cur barking at the sun cannot detract from its glory.狂犬吠日，无损于太阳的光辉。
2. A mischievous cur must be tied short.恶狗必须拴得短。
6. reparation [ˌrepəˈreɪʃn]
n.补偿，赔偿
payment for harm or damage
参考例句：
1. I'll demand reparation from the company.我将要求公司给予赔偿。
2. Whenever you find your wrongdoing,be quick with your reparation.任何时候当你发现自己的错误，要尽快去弥补和挽救。
7. succulent [ˈsʌkjələnt]
adj.多汁的，多水份的，多汁性的；n.肉质植物；多汁植物
Succulent food is pleasantly juicy
参考例句：
1. These are wonderfully succulent peaches.这些桃子汁水很多。
2. With succulent,herbaceous,species,water pressure at the nozzle is critical.对肉食植物、草本植物来说，喷头的水位要求很严格。
8. possessive [pəˈzesɪv]
adj.所有的，所有格的；adv.占有地；所属关系地；n.所有格；占有
If you are possessive about something that you own, you do not like lending it to other people or sharing it with other people
参考例句：
1. Some parents are too possessive of their children.有些父母过分要求子女百依百顺。
2. "My"is a possessive adjective.my是个所有格形容词。
9. whisker [ˈwɪskə(r)]
n.（猫、鼠等动物的）须；一丝
any of the long , stiff hairs growing on the face of a cat , mouse or other mammal
参考例句：
1. She came within a whisker of taking a gold medal.她离金牌只有一步之遥。
2. Unemployment is now a whisker away from three million.现在的失业人数已接近300万。
10. axiom [ˈæksiəm]
n.公理，定理
a statement or principle which is generally accepted to be true , but need not be so
参考例句：
1. This statement is the fundamental axiom that distinguished chemistry from alchemy.这个论述是化学区别于炼金术的基本定律。
2. It'seemed clear to him that this axiom could be dispensed with.看来他清楚地认识到这个公理能够去掉。
11. jockey [ˈdʒɒki]
n.职业赛马骑师；驾驶员；操作者；v.驾驶，操作；欺骗，欺诈；骑马
a person whose job is riding horses in races
参考例句：
1. Alexander is a famous jockey.亚历山大是著名的职业赛马骑师。每日20个英语单词
2. The rival political parties are already jockeying for power.相互竞争的政党已经在耍各种手段争权夺势了。
12. precipitous [prɪˈsɪpɪtəs]
adj.险峻的（突然的，急躁的）
If a slope is precipitous, it is very steep
参考例句：
1. Could there be a mountain more precipitous than this?山之险峻，宁有逾此？
2. A precipitous path led down the cliff.从峭壁上下来有一条险峻的小路。
13. saline [ˈseɪlaɪn]
adj.含盐的，咸的；n.生理盐溶液，盐湖
a liquid mixture of salt and pure water , which helps to kill bacteria or can be used to replace liquid lost from the body
参考例句：
1. Wash the lenses in saline solution.用盐溶液清洗镜片。
2. He is on a saline drip.他正在输盐水。
14. recount [rɪ'kaʊnt]
v.详述，重新计算；n.重新计算
to describe how something happened ; to tell a story
参考例句：
1. He then recounted the story of the interview for his first job.他接着讲述了自己第一次找工作时面试的情形。
2. He recounted how heavily armed soldiers forced him from the presidential palace.他讲述了自己是怎样被全副武装的士兵从总统官邸里赶出来的。
15. stud [stʌd]
n.图钉，装饰钮扣，立柱，板墙筋，壁骨，种马，耳环，年轻男子；v.镶嵌，点缀
a group of animals , especially high quality horses , kept for breeding
参考例句：
1. He runs stud farm in Ireland.他在爱尔兰经营一家种马场。
2. He played only draw and stud.他只玩抽牌和沙蟹牌游戏。
16. bikini [bɪˈki:ni]
n.比基尼，三点式泳装
a two-piece swimming costume for women
参考例句：
1. Her bikini was one of those expensive designer jobbies.她的比基尼泳装是那种价格昂贵的名牌产品。
2. Many old people find the bikini immodest.许多老年人感到穿比基尼式游泳服不正派。
17. adduce [əˈdju:s]
v.引证；提出
to give reasons why you think something is true
参考例句：
1. You must adduce a lot of examples to support your argument.你必须引用许多例证来证明你的观点。
2. Let me adduce more evidence.让我举出更多的证据。
18. colic [ˈkɒlɪk]
n.绞痛，急腹痛
a severe but not continuous pain in the bottom part of the stomach or bowels , especially of babies
参考例句：
1. The pain of biliary colic is occasionally in the epigastrium.胆绞痛的疼痛有时出现在上腹。
2. He had an awful colic.他有严重的腹绞痛。
19. allegiance [əˈli:dʒəns]
n.（对首领、国家等的）忠诚
loyalty and support for a ruler , country , group or belief
参考例句：
1. Soldiers must swear allegiance to the King.战士们必须对国王宣誓效忠。
2. The allegiance of uncommitted voters will be crucial.未表态的选民支持谁将是至关重要的。
20. numeral [ˈnju:mərəl]
n.数字，数；adj.数字的，表示数字的
a symbol that represents a number
参考例句：
1. This numeral means a onefold increase in production.这个数字意味着产量提高了一倍。
2. A table comparing numerals in two different numeral systems.一种可以比较两种不同数制中的数字的表格。