sth at a discount 打折扣；.打折出售■ HI?! reduce ： discounted
prices/fares 打折价_7._ 票价 dis-counter /'diskaunta^)/ (also 'discount store) noun a shop/store that
sells things very cheaply, often in large quantities or from a limited range of
goods 折扣 商店;_廉价商店''
'discount
rate noun {finance M) 1 the minimum rate of
interest that banks in the US and some other countries must pay when they
borrow money from other banks (美国及其他一些国家银行之间借款的）贴现率2 the amount that
the price of a bill of exchange
is reduced by when it is bought before it reaches its full value:
f 汇票）贴现率 3
the rate at which’an irtvestinent increases in value each year f 投资）折现率
di's.cour.age
/dis'kArid3;
-'k3:r-/ verfc 1 〜'sth I 〜sb from doing sth to
try to prevent sth or to prevent sb from doing sth, especially by making it
difficult to do or by showing that you do not approve of it 阻拦；
阻 lE 劝阻：[VN] a campaign to
discourage smoking among teenagers劝阻青少牵吸烟的运动Zeave a Hght on when
7’m out_to discourage burgiars.我出门时开着灯
以防夜盗闯‘'入。◊册 parents tried to
discourage hi’m >om being an actor.他的父母试图阻止他去当演员。[also V -ing] 2 [VN] ~ sb (from doing sth) to make sb feel less
confident or enthusiastic about doing sth 使灰心； 使泄气；使丧失信心dishearten ： Don't be discouraged
by the first failure—try .againJ 不要因第一 次失败就灰心丧气一再试一 6吧！ 〇rhe weather
discouraged peopZe_/h>m attending.这天气使得人们不愿
意出席。Plin encourage ► dis-cour-aged adj. [not usually before
noun] Ktii disheartened ： Learners can /ed very discouraged i/ an exercise is too d断cuZt.如果 练习太难，学习者就可能感到很没信心。discouraging adj. ： a
discouraging experience/response/result ^ A 泄气的经历/回答/结果《*is<our_aging’ly dis-cour-age-ment
/dis'kAridsmant;
NAmE -'k3：r-/ noun 1 [U] a feeling that
you no longer have the confidence or enthusiasm to do sth 泄气;灰心：an atmosphere of discouragement and
despair 灰心绝望的气氛 2 [U] the action of
trying to stop sth 阻止；阻—；动阻：the governmenfs discouragement of
political protest 政治抗议的阻拦 3
[Cl a
thing that discourages sb ^rom doing sth 使乂泄.气的事物；，折：Despite all these discouragements, she
re/used to give up.尽管遇到这么多
挫折，.她仍本气铵。 dis-course noun, verb
■
noi/n /_disk:>:s; MAmf -ko:rs/ 1 [C,
U] a long and
serious treatment or
discussion of a subject in speech or writing 论文；演讲：a discourse on issues
of gender and
sexuaZ办吴于另丨j和性行为的论文◊ He was hoping for
some lively political discourse at the meeting.
在会上听到些生动的政治演讲。2 [U】(//Vjgw/W/’cs语言)the
use of language in speech and writing in order to produce meaning; language
that is studied, usually in order to see how the different parts of a text are
connected 语篇；话语：spofcen/wrftten
discourse 口头./ 书面语篇◊ discourse
anailysis语篇分析
■
verb /dis'kois; NAmE -'koirs/ dis'course on/upon
sth (formal) to talk or give a
long speech about sth that you know a lot about 讲述；论述
'discourse marker noun {grammar a word or phrase that
organizes spoken language into different parts, for example ‘Well ’ or ‘On the
other hand …’ @篇畚记；话语记
dis-cour-teous /dis'k3：tias; NAmE -'k3：rt-/ adj. {formal) having bad manners and
not showing respect for other people不礼貌的;失礼的；粗鲁的EBC1 impolite 033 courteous o note at rude
dis-cour-tesy /dis'k3：t0si; NAmE -'k3：rt-/ noun [u, c] {pi. -ies) {formal) behaviour or an action that is not polite 失礼的行为；粗鲁的举动
dis-cover
Ow /di'skAV0(r)/
verb 1 [VN] to be the first
person to become aware that a particular place or thing exists (第一个发现：Cook is credited with
discovering ffawafi.人们把全现夏威夷
的功劳归于库克。◊ Scientists
around the worid are
working to discover a cure
for AIDS.
努力寻找治疗艾滋病的方法。2 to find sb/sth that
was hidden or that you did not expect to find '(.出.乎意料 地）发现，找到，发觉：[VN} PoZice discovered
a kirge stash 〇/drugs white searching
the house•警方搜查这栋房 子时发现里面藏有:一•大批毒品。◊ We discovered this beach while we were sailing around the
island. 0
绕这个海岛航行肘发现了这个海滩。〇 [VN -ing] He was discovered hiding in a
shed.人们发现他原来藏在棚屋里。
<> [VN-ADJ] She was
discovered dead at her home in Leeds. 人们发现她死在利兹她的家里6； 3 to find out about sth; to find some
information about sth 了解到；认识到；查
明：[VN] J’ve just discovered 我刚知道有悬
挂武滑运备!. 〇.[V.(that)] Jt was a
shocfc to discover he couW/i’t read•得&他不识宇專令，人震惊。◊ [V wh-]
We never did discover why she gave up her
job. 我们一直弄不清楚她为什么辞职、。◊ [VN that] Jt
was iater discovered that the diaries were a介aud.后来査明这些
，日记是伪造的。[VN to inf] He was Zater discovered to be seriously iH.危来才了解到他患了重病。lii"；! This pattern is
usually used in the passive.此句型通常用于 被动语态。4 [VN] [often passive]
to be the first person.to realize that sb is very good at singing, acting, etc.
and help them to become successful and famous 发现人 才）：The singer was
discovered while still at school. 这个歌唱家在上学的时候就受到赏识了。► dis<ov*er-er noun： the discoverer o/penidHfn 青霉素的发现者
dis.COV.ery 〇"w /di'skAvari/ "ow/7 (p/. -ies)
*1
[C, U] ~ (of sth) I ~ (that “.）an act or tiie process of finding sb/sth,
or learning about sth that was not known about before 发现；.发觉：the discovery of antibiotics i_n the
century * 2〇 世纪抗生.素的发现◊ The discovery of a child’s bohy in the river has
shocked the community.在河里发现一个孩子的尸体，这使社区大
为震惊。Researchers in thw 月dd have made some
important new discoveries.这个命域的研究人员有了一
些重大的新发现。_◊ He saw 〖i/e as a voyage 〇/discovery.
他把生命看作是一次探索未知世界的航行。◊ She was shocked
by the discovery that he had been unfaithful. 她发觉他示忠时感到非常震惊。◊ the discovery 〇/ new taZent in the.art vvorki 艺术界新秀的发现 2
[C] a thing， fact or person that is
found or learned about for the first time被发现的事物（或真相、人）：The drug is not a
new discovery—Ws been known about for years, # _药并不是；ft么新发规——多年前便为X所知。
dis-credit /dis'kredit/
verb, noun
■
verfc [VN]. 1 ’ to
make people stop respecting sb/sth 畋
环…的士声；使丧失信誉；使姜脸：The photos were
deZibemtdy tafcen to discredit the President.这些蓄意拍 摄的照片旨在败环总统的名声。◊ a discredited govemmeni/poHcy名声扫地的政府；失去信誉的政策
2 to make people stop
believing that sth is true; to make sth appear unlikely to be true 使不相信；使
.怀疑；使不可置信：These theories are now
〖argeiy discredited
among 〖inguists.这些理论现已，大多受到语言
学家的质疑。
mnoun [U] (formal) damage to sb’s
reputation; loss of respect名誉丧吳；信誉丧失；丢脸：Vioient/ootfcaH bring
discredit on t/ie tecrnis they su即ort.:狂热的 足球迷败环了他们所支持球队的声誉。◊ Britoi/i, to
its discredit, did not speak out against these atrocities. 英国没有公开反对这些残暴行为，使其名誉扫地。
—compare
credit (7)
dis-cred-it-able /dis'kreditabl/ adj. (formal) bad and unacceptable;
causing people to lose respect 不.光彩 _的；有损尊严的；丢脸的
dis-creet
/di'skriit/
adj. careful in what you say or do, in order to keep sth secret or to
avoid causing embarrassment or diffi- cultyforsb (言行 >
谨慎的,慎重的，考虑周到的HE] tactful ： He
was always very discreet about his love •他对两性关系一贯谨小慎微。◊ Ybu ought to make
a few discreet enquiries before you sign anything. 你应该卓慎地询问清楚A签字。► dis.creet.ly
Wv.: She coughed discreerty to announce her
presence.她审慎地咳
了一声以让人注意自己在场。