limitation
n.限制，限度；（常pl. ）局限
I know my limitations, so I won't do the things beyond my ability.
我知道自己能力有限，所以我不会做能力范围之外的事。

massive
a.大而重的；大量的，大规模的
The massive Allied invasion of Normandy is an action of enormous importance in the history of World War II.
对诺曼底的大规模联合入侵在二战史上具有重大意义。
Doctors discourage massive doses of painkillers.
医生不赞成大量服用止痛片。

modify
vt.修改，更改；（语法上）修饰
Although it has been greatly modified, the game known in the U. S. as football can be traced directly to the English game of rugby.
虽然做了很大改变，但所谓的美式足球比赛仍可以直接追溯到英国的橄榄球比赛。

motivate
vt.作为…的动机，激励，激发
Do you think examinations can motivate a student to seek more knowledge?
你认为考试能不能促使学生去追求更多的知识呢？

opponent
n.敌手，对手；反对者
Lenin spoke so convincingly that even his opponents were won over by his arguments.
列宁的演讲很有说服力，甚至连他的对手也被他的论述争取过来。

penetrate
v.透入，渗入，进入； 刺入，刺穿；洞察，了解
Don't bother to penetrate girls' minds as they are always changing.
别费心机去洞察女孩的心思，因为她们总在变。

priority
n.优先（权），重点；优先考虑的事
To build Guangzhou into an international metropolis, the highest priority has been given to resolving the problem of heavy traffic by the municipal government.
为了将广州建成国际化大都市， 市政府已经优先考虑解决交通拥挤的问题。
The top priority for school is to have a higher proportion of students entering advanced schools.
学校的首要目标是让更多的学生进入更高级学校念书。

receipt
n.发票，收据；（pl. ）收入，进款；收到，接到
You had better get a receipt for your expenses.
你最好对开销索取收据。
The pop singer got huge cash receipts from his concert.
那个流行歌星从演唱会中获取了巨额的现金收入。

recession
n.（经济的）衰退，衰退期
The entertainment industry of Hong Kong is undergoing a great recession.
香港的娱乐业正处于大衰退期。

reservation
n.（住处、座位等的）预订； 保留；（美国印第安部落的）居留地
We have our reservations about his ability to do the job.
我们对于他做该项工作的能力持保留态度。
If you want to have dinner on Valentine's Day in a Western style restaurant, you'd better make reservations earlier.
情人节这天，你如果想在西式餐厅用晚餐最好早些预订。

reward
n.报答，奖赏；报酬，酬金 vt. 报答，酬谢，奖励
Although Olympic winners receive no prize money, they are, in fact, richly rewarded by their state authorities in the form of money, fame and power.
尽管奥运会的获胜者们并不获得奖金， 但事实上他们的政府会给他们优厚的奖赏，其形式包括钱、名望和权力。

sequence
n.连续，接续，一连串；次序，顺序
A computer will always follow the same sequence when solving a problem, no matter how complicated that problem may be.
不管问题多么复杂，计算机在解决它时总是遵循同样的次序。
The first Olympic Games took place in 776 B. C. The exact sequence of events was uncertain, but events included men's gymnastics, boxing, wrestling, horse racing and field events.
第一届奥运会于公元前776年举行，比赛的准确次序不详，只知道包括男子体操、拳击、摔跤、赛马和田径项目。

slip
vi.滑（倒），滑落；溜走；下降 vt. 悄悄放进 n. 疏漏
Be careful not to slip on the ice.
小心别在冰上滑倒了。
The years slipped by.
岁月在不知不觉中流逝。
Tom slipped the candy into his mouth in class but that still couldn't avoid the teacher's eyes.
在课堂上，汤姆偷偷地把糖块放进嘴里，但那还是逃不过老师的眼睛。

suck
v.吸，吮
Plants suck up moisture from the soil.
植物从土壤中吸取水分。

vivid
a.生动的，栩栩如生的；鲜艳的
I gave my friends a vivid description of my journey in Tibet with pictures.
我用照片生动地向朋友们描绘了我的西藏之旅。