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1. revolve around表示绕...旋转，在做比喻意义的时候意思是以，，，为主要内容
The discussion revolve around poetry . 主要围绕诗歌进行讨论.
Satellites revolve around their planets. 卫星绕各自的行星运转.
Invelve是一个及物动词除了表示使卷入和包括，包含
Be involved in war被卷入战争;
the person invelved受牵连的人---If you want to carry a persons name on your resume as reference, clear that privilege with the person involved. 若在你
的简历上列出某人的姓名作为证明人，则须说明该人的特殊地位.
The exploration involves danger.---包含
Include/involve+ doing;include意思指包括整体的部分，involve指必然包括某种结果
Our ten-city tour included a visit a Stratford.---我们的十城市访问中包括斯特拉福.
To accept the position you offer would involve my living in London.---若接受你提出的职位，我们必然得住在伦敦了.
2. ripe是一个形容词---熟的，成熟的时机成熟的---Time is ripe for taking action.
3. derive是一个动词意思是渊源于;取得，得来)是一个及物动词
The custom derives its origin from Buddhism.---这种习惯起源于佛教.
derive knowledge from books从书中获得知识
Many English words are derived from Latin.许多英语词汇源于拉丁文.
Derivation是名词起源，由来，出处，语源
Rival既是名词，动词也是形容词，且是一个及物动词---They rivaled each other for the post.
4. enroll既是一个及物动词也是不及物动词
enroll sb in+--- Lets enroll our children in the piano class 咱们让孩子们在钢琴班上课吧.
Enroll sb as+---They decided to enrol him as a member of the society. 他们决定吸收他成为会社的成员.
5. Do in Rome as the Romans do.入乡随俗
6. routine既是一个名词也是形容词---daily routine日常工作
7. sacrifice既是一个动词，也是一个名词---animal sacrifice牲畜祭品;sacrifice ones life for ones country---为国捐躯
8. sailor和seaman基本相同，除了He is a goodsailor.---他不晕船.
9. worth ones salt=worth ones pay---称职---He is not worth his salt.---他不称职.
Salary多指白领脑力劳动拿的钱;wages多指体力劳动
10. resemble是一个及物动词，相似在某方面要加in---She resembles her mother in appearances.;resemblance to---The resemblance to her mother.
11. satisfy表示完全满足，content表示使人在一定程度上满足
satified具有被动含义;satisfactory令人满意)含有主动含义
12. on a large scale大规模地;on a small scale小规模的;
He is living the lowest scale of life.---他过着最低水准的生活.
Ascend既是及物动词也是不及物动词;攀登，登上---及物动词---We ascended the stairs.; 渐渐上升，升高---不及物动词 The balloon ascended to the sky.
13. conscience良知，良心; have no conscience不辨善恶，失去良知; have a good/clear conscience问心无愧
其有两个形容词 conscientious认真的，尽责的，勤勤恳恳的---conscientious work本着良心做的工作;a conscientious worker勤勤恳恳的工作者
Conscious优质觉得，神智清醒的;意识到的，自觉的---One must be conscious of ones shortcomings.人须有自知之明.
14. search是一个及物动词也是名词;a search for sth; in search of--- Hes sailed the seven seas in search of adventure. 他闯荡七大洋去历险.
Research是一个不及物动词也是一个名词research into/on---A lot of money is spent on research into the causes of cancer.
15. second to none不亚于任何人---This pen is second to none . 这只笔不亚于任何别的笔.
Second还有一个意思是附和，赞成---second the motion附议，赞成此动议;second another persons idea赞成另一个人的主意;Deeds must second words.
言行必须一致.
Consecutive主要指规则或紧接的连续，时间上无间断;successive指一系列单独的时间，次序上无间断，时间上可以有间隔
Carrybrutinto executive---实施，实行; prosecute sb for doing/st起诉，告发，检举; in consequence=as a result; in consequence of=as a result of
hEnsue是一个不及物动词，意思是接着发生，接踵而来，因而产生 What will ensue from this?这会产生什么结果呢?
Suit是一个名词---bring a suit against sb;
Sbe sb for sth
16. at first sight注意这里没有冠词
have an insight into sbs mind; have an insight into the problem