un-dated /.An'deitid/ adj. 1 without a date written or
printed on it 未注日
的：an undated /etter —封没写日
期的信 2 of which the date is not known 日期不明的；
时间不详的：undated archaeotogicai remains 时间未确
定的考古遗迹一 compare dated un-daunt-ed /.An'dointid/ adj. [not usually before noun] {formal) still enthusiastic and determined, despite
difficuities or disappointment 顽强；百折不挠；坚遍不
屈 HTTl undeterred： He seemed, undaunted by all the 0即osition to his idea.尽管他的思想屡遭非难，彳i似乎仍 然百折f挠。
un-decided /.Andi'saidid/ adj. [not usually before noun] 1 ~ (about
sb/sth) | ~ (as to sth) not having made a decision about sb/sth 未拿定主意；犹豫不决：I’m still undecided (about) who to
vote for.
的票。2 not having been
decided尚桌M确定；悬而 未决：The venue for the World Cup
remains undecided. 世界杯的举办地点尚未确定。一 compare decided un-declared /.Andi'klead; NAmE -'klerd/ adj. not admitted to; not stated in an open way; not
having been declared未承认的.；未声$的；未申报的：JVo income shouW
remain undedared —切收入均运申报。◊ Undeclared goods (= that the customs
are not told about) may be con_/?scated.未报关的物品可能被没收。 un-defeat-ed /.Andi'fiitid/ adj. (especially in sport 于体育运动）not having lost or
been defeated 不败的；
未尝故绩 They
are unde/eated i>i J3 games.沾们 13
场比秦未被打败M。◊ the unde/eated
worZd champion 全胜的世界冠军
un-defend-ed /.Andi'fendid/ adj. 1 not protected or
guarded不设防尚；不加防釦的0H3 unprotected : imde/ended borders 木设防边界 2 if a case in
court is undefended, no defence is made
against it 无抗辩的；
不作辩f的
un-defined /.Andi'faind/ adj. not made clear or definite 未阐明的；未限定的：rhe money was Zent /or
an umie_/?Med period 0/time.这笔钱无限期借出。
un.de.lete
/,Andi'li:t/ verfc [VN, v] (compt^/ng 计)■' to cancel an action of deleting a document, a file, text, etc.
on a computer, so that it appears again 取消 _ 除； 恢复（已删除p文件等）
un-demand-ing /.Andi'maindn]/ adj. 1 not needing a lot of effort or thought不费力品；禾费神的；轻松容易
的：cm umiemcmdfng job 轻松的工作
2 (of
a person 人）
not
asking for a lot of attention or action from other people不强求的；不要求照顾的；随和的ES3
DEMANDING
un-demo-crat-ic /.Andema'kraetik/ adj. against or not acting according to the
principles of democracy 不民 主的；专横的；霸道的：imdemocratic decisions专—的 决定◊ an
undemocratic regime 专制政权 PTJ3 demo- cratic ►
un-demo-crat'ic-al-ly /-kli/ adv. ： an undemo- craticaHy decteci
government 相民选政府◊ He was accused of acting
undemocratically. un-demon-stra-tive /.Andl'mDnstrativ; NAmE -'main-/ adj. not showing feelings openly, especially feelings of
affection喜怒不形于色的；不流露感情的EaaDEMON-
STRATIVE
un-deni-able /.Andi'naiabl/ adj. true or certain; that cannot be denied 不可否认的；确凿的
_
PfiTl
indisput- able: He had undeniabie
charm.他真有不可否认的魅
■力。◊ ft is an
undehabte /act that crime is increasing. 犯罪在增加是无可争辩的事实。► un-denhably /-abli/
adv. ： undeniably impressive^iX^tiii^
Under 〇T» /'Anda(r)/ prep., adv., adj.
■ prep.
1 in, to or through a position that is
below sth |E (逢到、M过）…下面：Have you Zoofced umier
the bed? 你♦了涂底下投有? She ptored the 〖adder under (= just
lower than) the window/.如把梯子立在窗户下面。◊ rhe dog squeezed under the gate and ran into the road. ^IJA 门底下钻出去，跑到大路上去了。2 below
the surface of sth; covered by sth在…表面下；由…覆盖着：The boat Zay under
several/eet 0/water.那条船沉在水下好几英尺
处。3 less than; younger than.少于■;小于;"朱免；比… 年轻：an annuaZ income 〇/under Ł20 000 不到 I 万英
年收入◊ took us un^er an hour.这事女T我们不
到 时。◊ Nobody under
28 is aiZowed to buy aicohoi. 未满18岁者不得买酒。4 used to say who or
what controls, governs or manages sb/sth 由…控制（或管 理、经會 > :The country is now under martial law.
^ ■不圉家目前在戒严中。◊ 77ie coinage
was re/ormed under Mizabeth J (= when she was queen).英国币制在伊丽莎 ,,白一世时代 _
了 改革。◊ She has a
stajST ojf 2 9 wording under her.龜_'卞★ 19 个职员工作。◊，C/mier its new conductor, the orchestra has established
an international tation.在薪指挥的领导下，这个乐团建立了国际声
5 according to an agreement, a law or a
system 据，按照（协议、法律或制度）：Six suspects are bdng heW under t/ie
Prevention 0/ Terrorism Act.根据《防止 恐怖法》，:六个嫌疑人被拘#。◊ Under the terms ojT the Zease you
had no right to subiet the property•按租约条款
的规定，你无权转租这房;产。◊ Is the
tdevision under guarantee?这台电视机还在保修期内吗？ 6
experiencing a particular process 在…过程中：The hotel is still under construction•旅馆还在兴建中。◊ 77ie matter is
under investigation•此事正在调查中。7 affected by sth 由… 造成；受…影响：7?ie
waH coHapsed under the strain. 墙壁因承受不了重压而坍塌了。◊ fve been/eeiing under stre岛ZateZy.義最近感到压ij很大。◊ Z’m under no
iHuswns about what hard worfc this wiH be.对于这项 工作的辛苦，我从不存错误的幻想。◊Ybu’H be under
anaesthetic, so you won’t/ed a thing.你将被麻醉，所以 什么也感觉不到。8 using a particular name用，以 (某一.名宇She also writes under the
pseudonym of Barbara Vine.她也用芭芭拉•瓦因的化名从事写作。
9 found in a particular part of a book,
list, etc.在…项
下；在（书等七的）某部分：1/it’s not under ‘sports’, try Zoofcing under ‘games’.如果在“体育运动”项下查不到，
就试试“游戏”项吧。
■
a</v. 1 below
sth’在下面：_ ffe
puHed up t/ie covers and crawied • under.他揭开被子钻到里面。2 below
the surface of water 在水下：She
took a deep breath and stayed under/or more than a minute•她深吸了一 口气，
然备潜水一分多钟。◊ The boat was
going under/ast.小 船正迅速下沉。3 less; younger少小于；较年轻：
ten•十充5及以‘下柄7价格:◊ c/u'Zdren a^ecH2 and
under * .12 汐及以下的九童 4 in
or into an unconscious state 在昏迷中陷入•迷状态：He /dt WmseZ/going under•他觉得自己将要昏厥。
[only before noun] lower; underneath 较低的；下面 的：the. under Zayer 卞*面的一层 O
the under sur/ace 〇/ a
ka/叶子的背面
under- /'And0(r)/ prefix 1 (in nouns and
adjectives ^J5!c 名词和形容命below; beneath在下面；在…之T : undergrowth 灌木丛◊ undercover 暗中的 2
(in nouns 构 成名词)lower in age or
rank (年龄）钕小；（级别）锓 低：the imder-_/iives 五岁以卞的儿童◊ cm
undergraduate 夫学生3 (in adjectives and
verbs构成形容词和动词)not
enough 不足；未：underripe 未成熟◊ undercoofced 未 煮熟
underachieve /.Andara'tXiiv/ verb [V] to do less well than you could do,
especially in school work (尤指学 习土）未发挥水平，未展现產力►under-achieve.ment
noun [U] under-achiever noun
underage /'Andareid3/ adj. [only before noun] done by people who are
too young by law 未达到法定年龄的乂
所摄的；未成年人underage drinking —see also age
underarm /'Andaraim; NAmE -a:rm/ adj., adv.
m adj. 1 [only before noun]
connected with a person’s armpit 腋* 的；腋下:的：underarm
hair/deodorant/ sweating腋i ;腋下除臭剂/出汗2 an underarm throw
of a ball is done with the hand kept below the level of the shoulder 下手（或低手）投球的一compare
OVERARM
■
adv. if you throw, etc. underarm, you throw
keeping your hand below the level of your siioulder 下手地，低 手地（投球等 >
—compare overarm
under-belly /'Andebeli; NAmE -darb-/ noun [sing.] 1 the weakest part of sth that is
most easily attacked 脆弱 点；薄弱环节^ The trade deficit remains the soft under- beHyo/the t/S economy.贸爲赤字仍是美国经济的软肋。
2 the underneath part of an animal ('动物的）下腹 部，月南：(figurative) He became familiar
with the dark