1、concentrate: to give all your attention to sth and not think about anything else
集中(注意力);聚精会神;使…集中(或集合、聚集);(使)浓缩
I decided to concentrate all my efforts on finding somewhere to live.
2、minority:模范少数族裔;模范少数民族;模范少数;模范族裔
Hard work has marked Asian Americans as a model minority.
3、get behind in: Once you get behind in class, it's difficult to catch up.
4、What do you do for an extra hour? 那些额外的时间准备干什么？
5、effective：有效的；实际的；事实上的；
Aspirin is a simple but highly effective treatment.
He has now taken effective control of the country.
6、innovation：the introduction of new things, ideas or ways of doing sth
an age of technological innovation；技术革新的时代
recent innovations in steel-making technology
7、necessary必需的；必要的；必然的；无法避免的
It doesn't seem necessary for us to meet.
This is a necessary consequence of progress.
8、agenda 议程表，议事日程
The next item on the agenda is the publicity budget.
9、dialects：A dialect is a form of a language that is spoken in a particular area.
He can speak several dialects.
In the fifties, many Italians spoke only local dialect.(perstige dialect)
10、abbreviation: a short form of a word, etc.
What's the abbreviation for ‘Saint’?
11、Sociolinguistic：
A Sociolinguistic Study of Chinese Language Learning in Singapore.
A Sociolinguistic Analysis of Japanese Young People's Language.
A Sociolinguistic Analysis of Gender Differences in English Language.
12、lingua franca(母语不同的人共用的)通用语
English has become a lingua franca in many parts of the world.
13、pharmaceutic：药剂学
Probe into hospital pharmaceutic management and the thought of development .
14、reluctant：~ (to do sth)不情愿的；勉强的 hesitating before doing sth because you do not want to do it or because you are not sure that it is the right thing to do
She was reluctant to admit she was wrong.
He finally gave a reluctant smile.
15、frustrated
They felt frustrated at the lack of progress.
It's very easy to get frustrated in this job.
16、gurantee:v
Learning process is a key link to gurantee the teaching quality.
Safeguard the healthy development of the financial gurantee companies in the system.
We gurantee superior quality standard, excellent service and reasonable price always!
17、reassurance: the fact of giving advice or help that takes away a person's fears or doubts.
to give/provide/offer reassurance
We have been given reassurances that the water is safe to drink.
18、straiten：bring into difficulties or distress, especially financial hardship
You're going to go down and straighten out those chair people.
Therefore, first I asked him if his circumstances admitted him to spare so much money at that time, and if it would not straiten him.
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