1. northeast ['nɔ:θ'i:st]
n.东北；adj.东北的，向东北的，来自东北的；adv.向东北，来自东北
the direction which is between north and east
参考例句：
1. I was born in the northeast. 我出生于东北部。
2. A northeast wind is blowing strongly. 东北风刮得呼呼响。
2. worthwhile [ˌwɜ:θˈwaɪl]
adj.值得花时间的，值得做的，相宜的
useful , important or good enough to be a suitable reward for the money or time spent or the effort made
参考例句：
1. It isn't worthwhile spending so much time on minor problems. 在枝节问题上犯不着花这么多时间。
2. It is worthwhile doing it. 做这件事划算。
3. impression [ɪmˈpreʃn]
n.印象，感想；印记，压痕
an idea or opinion of what something is like
参考例句：
1. The impression is so deep that it can hardly ever blow over. 印象太深了，忘也忘不了。
2. She made a good impression on his mother. 她给他母亲留下了很好的印象。
4. trade [treɪd]
n.贸易，商业，交易；行业，同行；手工艺；主顾，(复数)信风；vi.做生意，购物，交换；vt.用某物交换，做买卖；adj.商业的，专业性的，同行的
the activity of buying and selling , or exchanging , goods and/or services between people or countries
参考例句：
1. Transport has always been the key to developing trade. 运输一直是发展贸易的关键。
2. The war brought all foreign trade to a stand. 这场战争使一切对外贸易都停止了。
5. branch [brɑ:ntʃ]
n.分支，树枝；vt/vi.分支，分岔
a part of something larger
参考例句：
1. The bird settles on a branch. 鸟儿栖息在枝上。
2. The olive branch stands for peace. 橄榄枝象征着和平。
6. genius [ˈdʒi:niəs]
n.天才，天赋；天才人物；精灵，神灵，守护神
very great and rare natural ability or skill , especially in a particular area such as science or art , or a person who has this
参考例句：
1. What genius he has! 他真有才华！
2. He is a man of genius. 他是一个有天赋的人。
7. basis [ˈbeɪsɪs]
n.基础，主要成分
the most important facts , ideas , etc . from which something is developed
参考例句：
1. We can't accept that as a basis for a decision. 我们不能同意以此为基础来做出决定。
2. What is the basis of your opinion? 你这样看的根据是什么？
8. tough [tʌf]
adj.坚硬的，咬不动的；棘手的，难办的；强健的，吃苦耐劳的；粗暴的，凶恶的
strong ; not easily broken or made weaker or defeated
参考例句：
1. The meat was so tough that I simply couldn't get it down. 这肉太老了，我简直咽不下去。
2. When there's a tough job, he always rushes to do it. 什么时候有重活，他都抢着干。
9. swallow [ˈswɒləʊ]
n.燕子；vt.吞下，咽下，忍受；vi.咽口水
to cause food , drink , pills , etc . to move from your mouth into your stomach by using the muscles of your throat , or to use the muscles of your throat as if doing this
参考例句：
1. She likes to watch the swallow flying. 她喜欢看燕子飞。
2. It's hard to swallow. 这真是难以下咽。
10. engine [ˈendʒɪn]
n.引擎，发动机，机车，机械；vt.安装发动机于
a machine that uses the energy from liquid fuel or steam to produce movement
参考例句：
1. The engine started up suddenly. 发动机突然发动起来了。
2. The engine will not fire. 这发动机发动不起来。
11. typical [ˈtɪpɪkl]
adj.典型的，象征的，有代表性的
showing all the characteristics that you would usually expect from a particular group of things
参考例句：
1. This is typical Chinese English. 这是典型的中式英语。
2. It is a typical Persian garden. 这是个典型的波斯式花园。
12. champion [ˈtʃæmpiən]
n.冠军，拥护者，战士；vt.保卫，拥护；adj.优胜的
someone or something, especially a person or animal , that has beaten all other competitors in a competition
参考例句：
1. The champion is running in lane five. 冠军跑在第五跑道上。
2. She has won the title of the world's champion. 她获得了世界冠军的称号。
13. aside [əˈsaɪd]
adv.在旁边，撇开不谈；n.独白，旁白
on or to one side
参考例句：
1. I stepped aside so that she might come in. 我往旁边走一步，以便她能进来。
2. Some young people push their parents aside after their marriage. 有些年轻人结婚之后就不管父母了。
14. opportunity [ˌɒpəˈtju:nəti]
n.机会；时机
an occasion or situation which makes it possible to do something that you want to do or have to do, or the possibility of doing something
参考例句：
1. It's a pity that Mike passed up such a good opportunity. 迈克错过了这么好的一个机会，真是可惜。
2. I love the country, but I have less opportunity of seeing it. 我热爱乡村，但我几乎没有机会见到它。
15. devotion [dɪˈvəʊʃn]
n.奉献，献身，忠诚，专心；祈祷
loyalty and love or care for someone or something
参考例句：
1. Their devotion to their children is plain to see. 他们对子女的挚爱显而易见。
2. His devotion to science is well known. 他对科学的献身精神为人熟知。
16. gain [geɪn]
vt.获得；增加；表等走快；vi. 增加；获利 n.增进，增加；收益
to get something that is useful , that gives you an advantage , or that is in some way positive , especially over a period of time
参考例句：
1. He continued to gain on the rest of the runners. 他继续跑在其他运动员前面。
2. It takes years to gain a mastery of Japanese. 掌握日语要花几年时间。
17. mental [ˈmentl]
adj.精神的，思想的，内心的；智力的，脑力的；精神病的
relating to the mind , or involving the process of thinking
参考例句：
1. A mental hospital has just been set up here. 这里刚刚建成一座精神病医院。
2. He has some mental problems. 他有心理上的问题。
18. lecture [ˈlektʃə(r)]
n.讲座，讲课；演讲
a formal talk on a serious or specialist subject given to a group of people , especially students
参考例句：
1. I take it as a pleasure to attend your lecture. 我很愿意听你讲课。
2. The professor began his lecture by telling a joke. 教授在讲课前先讲一个笑话。
19. celebrate [ˈselɪbreɪt]
vt.庆祝；颂扬，赞美；vi.庆祝，过节
to take part in special enjoyable activities in order to show that a particular occasion is important
参考例句：
1. On October lst we celebrate our National Day. 十月一日我们庆祝国庆。
2. We want to celebrate his birthday. 我们要庆祝他的生日。
20. advance [ədˈvɑ:ns]
n.前进，预付 vi.前进，进展 vt.促进，推进
to go or move something forward , or to develop or improve something
参考例句：
1. The booking office sells tickets 3 days in advance. 售票处预售3天的票。
2. She walked 2 yards in advance of her husband. 她走在她丈夫前面两码远的地方。
