4161.explanation(名)解释
The most likely explanation is that his plane was delayed.
最可能的解释是他的飞机误点了。

4162.express(动)表达
同义词describe
Teachers have expressed concern about the emphasis on testing.
老师们对太着重考查成绩的现象表示担忧。

4163.expression(名)表达；表情
Expressions of sympathy flooded in from all over the country.
同情的示意如潮水般地从全国各地地涌来。

4164.extend(动)延伸
Can't you extend your visit for a few days?
你们访问的时间不能延长几天吗？

4165.extension(名)延伸、伸长、延期
I planned an extension of my holiday.
我计划延长我的假期。

4166.extensive(形)广泛的
同义词spacious
The house has extensive grounds．
这栋房子有宽敞的庭院。

4167.extinguish(动)熄灭
Smoking is forbidden. Please extinguish your cigarette.
禁止吸烟，请把您的烟熄灭。

4168.extra(形)(副)(名)额外
(形):The conference is going to be a lot of extra work.
这次会议将有很多额外工作。
(副): The monthly feel is fixed and there are no hidden extras．
月费是固定的，没有未言明的额外开支。
(名):I need to earn a bit extral this month.
我这个月需要赚点外快。

4169.extreme(形)极端的、尽头的(名)极限
同义词radical
(形):"Juggling one's life" probably means living a life characterized by extreme stress.
“为生活忙碌”可能指的是以极度紧张为特征的一种生活。
(名): Love and hate are extremes of passion.
爱与恨是感情的两个极端。

4170.eyebrows(名)眉毛
惯用复数
He's in it up to his eyebrows．
他深陷于困境之中。

4171.eyelid(名)眼皮
He heard the bad news without batting an eyelid.
他听到这个坏消息丝毫不动声色。

4172.eyesight(名)视力
不可数
His eyesight was exceedingly defective．
他的视力有很大的缺陷。

4173.eyewitness(名)目击者
The driver's version of the accident was differant from the eyewitness.
那司机对该车祸的说法与目击者不同。

4174.fable(名)寓言、虚构的故事
This is a fable about a man and a sly old fox.
这是一个关于一个男人和狡猾老狐狸的寓言。

4175.facet(名)事物的面、刻画
Now let's look at another facet of the problem.
现在我们来看问题的另一面。

4176.faction(名)派别、派系
His factian split off from the party.
他这个派系脱离了该党。

4177.faculty(名)全体教职员；官能；技能
She retained her mantal faculties untill the day she died.
她直到临终那天一直保持着思维和理解能力。

4178.fad(名)流行一时的狂热
Rap music proved to be more than just a passing fad．
事实证明，说唱音乐并不是昙花一现。

4179.fade(动)褪色、凋谢、枯萎
同义词bleach
Any memory her childhood had faded from her mind.
她童年的一切记忆都逐渐从脑海中消逝了。

4180.faint(动)昏倒
He fainted when he heard the news．
听到这消息时，他晕了过去。

4181.fairy(名)仙女、小仙子
Fairy-tales often help to develop a child's imagination.
童话故事经常帮助发挥幼儿的想象力。

4182.fame(名)名声、声誉
He cares very little for fame and gain.
他对名利很淡薄。

4183.familiar(形)熟悉的
后接介词with
The children are too familiar with their teacher.
这些小学生对老师过于放肆。

4184.familiarity(名)熟悉、通晓；亲密
His familiarity with the language helped him anjoy his stay．
他通晓这种语言，所以逗留期间过得很惬意。

4185.familiarly(副)通俗地、亲密地
He touched her cheek familiarly．
他亲昵地碰了碰她的脸颊。

4186.famine(名)饥荒
Famine caused widespread distress．
饥荒引起了普遍的忧虑。

4187.fantastic(形)极好的：想象中的
The car costs a fantastic amount of money.
这轿车的价钱贵得吓人。

4188.fantasy(名)幻想、空想
Children sometimes can't distinguish between fantasy and reality．
小孩有时不能区分幻想与现实。

4189.faraway(形)远方的；恍惚的
There was a faraway look in her eyes.
她眼中流露出心不在焉的神情。

4190.fare(名)车资费；伙食
When do they start paying full fare?
他们什么时候开始买全票？

4191.farewell(名)告别
She said her farewells and left.
她告别后就离开了。

4192.farsighted(形)远视的；有卓见的
The new prime minister is generally acknowledged as a farsigVited statesman．
新首相是一位公认的有远见的政治家。