1. reluctant [rɪˈlʌktənt]
adj.不愿意的；迟迟不合作的；不同意的
not willing to do something and therefore slow to do it
参考例句：
1. The workers are reluctant to be ordered around by the employers. 工人们不愿被雇主们差来遣去地随便使唤。
2. I am reluctant about asking him to do this. 我极不愿意让他去干此事。
2. inhabitant [ɪnˈhæbɪtənt]
n.居住者；居民；栖居的动物
a person or animal that lives in a particular place
参考例句：
1. The inhabitant of the island is friendly. 岛上的居民很友善。
2. The old inhabitant who answered was a tall, gaunt woman. 这个答话的本地老住户是一个高个儿，瘦身材的女人。
3. clothe [kləʊð]
vt.供给衣服，给…穿衣
to provide someone with clothes
参考例句：
1. We clothe our thoughts in words. 我们用语言表达思想。
2. She was on her own with two kids to feed and clothe. 她独自一个人要供两个孩子吃穿。
4. old-fashioned [ˈəuldˈfæʃənd]
adj.旧式的，保守的，挑剔的
not modern , belonging to or typical of a time in the past
参考例句：
1. Why do you still dress in an old-fashioned mode? 你为什么还穿款式陈旧的衣服？
2. Here is an old-fashioned pump for drawing water from a well. 这里有一个旧式水泵可从井里抽水。
5. scarcely [ˈskeəsli]
adv.几乎不，简直没有，勉强
only just or almost not
参考例句：
1. He found the dullness of his work scarcely bearable. 他觉得他的工作枯燥乏味，简直无法忍受。
2. She scarcely earns enough money to make ends meet. 她几乎挣不到足够的钱以维持开支。
6. efficiency [ɪˈfɪʃnsi]
n.效率，效能，功效
when someone or something uses time and energy well, without wasting any
参考例句：
1. We were most impressed with your efficiency. 你的效率给我们留下很深刻的印象。
2. Our goal is to achieve the maximum of efficiency. 我们的目标是取得最高的效率。
7. hydrogen [ˈhaɪdrədʒən]
n.氢元素，氢气
the lightest gas , with no colour , taste or smell , that combines with oxygen to form water
参考例句：
1. Water is made up of atoms of hydrogen and oxygen. 水由氢和氧的原子构成。
2. A chemist can isolate the oxygen from the hydrogen in water. 一个化学家能把水中的氧和氢分解。
8. prosperous [ˈprɒspərəs]
adj.兴旺的，繁荣的；成功的
successful , usually by earning a lot of money
参考例句：
1. This district is getting more and more prosperous and bustling. 这一带越来越繁华热闹了。
2. The country is prosperous and the people live in peace. 国泰民安。
9. clarify [ˈklærəfaɪ]
vt.澄清，阐明，使变得清晰；净化；vi.得到澄清；变得明晰；得到净化
to make something clear or easier to understand by giving more details or a simpler explanation
参考例句：
1. I am happy to clarify any points that are still unclear. 我愿意说明任何仍然不清楚的地方。
2. Can you clarify this long sentence? 你能把这个长句子解释清楚吗？
10. curl [kɜ:l]
n.(一绺)鬈发；卷曲；vt.卷曲；vi.卷曲；缭绕
a piece of hair which grows or has been formed into a curving shape , or something that is the same shape as this
参考例句：
1. She put her hair in rollers to make it curl. 她用卷发夹子把头发弄卷曲。
2. Does her hair curl naturally? 她的头发是天然卷曲的吗？
11. singular [ˈsɪŋgjələ(r)]
adj.个人的，单数的，独一的，唯一的，非凡的；n.单数
of or relating to the form of a word used when talking or writing about one thing
参考例句：
1. The young man has a singular ear for music. 这个年轻人对音乐有非凡的欣赏力。
2. The noun is in the singular. 这个名词是单数形式。
12. index [ˈɪndeks]
n.食指；索引；标志；指数；vt.把...编索引，vi.做索引
an alphabetical list , such as one printed at the back of a book showing which page a subject , name , etc . is found on
参考例句：
1. Performonce is an index of ability. 成绩是能力的标志。
2. Manner of walking gives an index to one's charactor. 走路的姿态可反应出人的性格。
13. approval [əˈpru:vl]
n.赞成，同意；批准，认可
when you have a positive opinion of someone or something
参考例句：
1. The audience has expressed its approval. 观众已经认可。
2. The teacher signed his approval. 老师做了手势表示同意。
14. accuracy [ˈækjərəsi]
n.准确(性)；精确(性)
being exact or correct
参考例句：
1. There is need to check the accuracy of these figures. 有必要核对一下这些数字的精确性。
2. I doubt the accuracy of your statement. 我怀疑你的话的正确性。
15. multiple [ˈmʌltɪpl]
adj.多个(或多项、多种)的；n.（数）倍数
very many of the same type , or of different types
参考例句：
1. The number 8 is a multiple of 4. 八是四的倍数。
2. The most common multiple births are twins, two babies born at the same time. 最常见的多胎是双胞胎，两个婴儿同时出生。
16. devise [dɪˈvaɪz]
vt.发明，策划，想出
to invent a plan , system , object , etc ., usually cleverly or using imagination
参考例句：
1. We will devise a way of escaping from this prison. 我们要想个办法从这些监狱里逃出去。
2. Let's devise how to finish the work. 咱们来计划一下如何完成这项工作。
17. fatal [ˈfeɪtl]
adj.致命的，灾难性的；重大的，决定性的
A fatal illness or accident , etc . causes death
参考例句：
1. The enemy got a fatal blow in the battle. 敌人在战斗中受到致命的打击。
2. I made the fatal mistake of letting her talk. 我让她讲话是犯了严重的错误。
18. demonstrate [ˈdemənstreɪt]
vt.论证，证明；示范；显示；vi.示威游行
to show; to make clear
参考例句：
1. Let me demonstrate to you how this machine works. 我给你演示一下这台机器的运转情况。
2. How can I demonstrate to you that my story is true? 我怎样才能向你证明我的话是真实的呢？
19. inherit [ɪnˈherɪt]
vt.继承(金钱等)，经遗传而得(性格、特征)
to receive money , a house , etc . from someone after they have died
参考例句：
1. He intended that his son should inherit his business. 他打算让他的儿子继承他的生意。
2. We must inherit in a critical way. 我们要以批判的方式继承。
20. catalogue [ˈkætəlɒg]
n.目录，总目；vt.编入目录
a book with a list of all the goods that you can buy from a shop
参考例句：
1. The librarian entered a new book in the catalogue. 图书管理员把一本新书编入目录。
2. The catalogue is under revision. 目录册正在修订之中。
