〇pen-ly 〇T» /'aupanli; NAmE'ou-/ adv. without hiding any
feelings, opinions or information 公 开地；毫不隐瞒地：Can you taZ/c openZy about
sex with yourparents?如可以跟父母敞开谈性的问题吗？ ◊
77ie men in
prison would never cry openly (* so that other people could see).狱中犯人从不当众哭
,open
'market noun [sing.] a situation in which
companies can trade without restrictions, and prices depend on the amount of
goods and the number of people buying them 公开市场；自由市场：to buy/seZl/ trade on the open market在自由市场上买7卖A交易 .open lmike
noun [u] an occasion in a
club when anyone can sing, play music or tell jokes 即兴表演式聚
会（出席者都可上台唱歌、演奏或表演滑稽说笑）： open-mffce night即兴表演晚会
.open-'minded
adj. willing to listen to,
think about or accept different ideas愿意考虑不同意见的；思想开明的
r*TJ3
narrow-minded ► ,open-’minded.ness /7〇w/7 [U] .open-'mouthed adj. with your mouth open because you are
surprised or shocked (因惊愕）张着口的，瞠
目结舌的，目瞪口呆的
.open-'necked
(also
,open-1 neck) adj. (of
a shirt worn without a tie and with the top button undone 未打领带也未扣领扣的；敞领的
open-ness
/'aupannas;
NAmE 'ou-/ noun [U] 1 the quality of being honest and not
hiding information or feelings 诚实；率真；坦率 2 the quality of being
able to think alxmt, accept or listen to different ideas or people 虚心 的品廣；开明 3 the quality of not
being confined or covered开阔；开放；未遮盖
.open-1
pit adj. {NAm£) = opencast ,open-'plan adj. an open-plan building or area does not have inside walls
dividing it up into rooms 开放式 的；敞开式的；未隔间的：anopen-pkmoj^ce敞开式的
办公室
,〇pen prison (8r£) {NAmE minimum se curity prison)
noun a prison in which prisoners have more
freedom than in ordinary prisons #放式监狱（对犯人的自由限制
较少）
,open 'sandwich noun a sandwich
which is served on a plate with no top piece of bread 单片三明治（无顶层
面包片） >
’open
season /7〇w/7 (sing.] 1 〜（for sth) the time in the year when
it is legal to hunt and kill particular animals or birds, or to catch fish, for
sport (法定）渔猎开放季
节 Rliia close
season 2 〜for/on sb/sth a time when there are no
restrictions on criticizing particular groups of people or treating them
unfairly (针对某些团体的） 言备开放期自由评论期：seems to be open season on
teachers now.现在好像是自由评论教师的开放期。
.open
'sesame noun [sing.] an easy way to gain or
achieve sth that is usually very difficult to get 开门咒 语；通行手段；通行途:，Academic success is not giways an open sesame to a
weH-pafd job•在校成绩好并赤总是
获得高薪职位的敲门砖。TSnmi From the fairy tale Ali Baba and the Forty Thieves, in which the magic words
open sesame had to be said to open
the cave where the thieves kept their treasure.源自童话故事《阿里巴'巴
和四十大盗》。只有念出咒语“芝麻，开门”，大盗藏宝
洞的大门才能打开。
open-'source adj. {computing -if) used to describe
software for which the original source
code is made available to anyone (软件 >
开放源代码的，提供源程
序的
'open syllable noun (phonetics a syllable which .does not end with a consonant,
for example so 开音节
(以元音结束，如so)
,open-’toed <?〇[/_• (of'shoes 鞋）not covering the toes 露 k:的：open-toed samiats 露fit凉鞋 ,open-1 top
(also
,〇pen-'topped)
£7办（8r£) (of a vehicle 机动车)having
no roof敞篷尚 .open 'verdict noun an official decision in a British court
stating that the exact cause of a person's death is notknown死因未详的裁决，存疑判决（英国法庭宣称死
因不明的判决）
opera
/'Dpra;
NAmE 'aipra/ noun 1 [C, U] a dramatic work
in which all or most of the words are sung to music; works of this type as an
art form or entertain- ment歌剧；歌剧剧本；歌剧艺术：PL/ccinfs operas普契 尼的歌剧◊ to go to the
opera 去看歌剧◊ cm opera_s.inger
歌剧秦 k ◊
Hght<grand opera 轻 / 夫歌剧一see also soap
opera 2 [C] a company that performs opera; a building in
which operas are performed 歌剧团；歌剧 院：the Vienna State Opera 维也纳国家
at.ic /,Dp9’raBtik; _a:p-/ <3办：operatic arias/com-
posers碱剧咏叹调/作曲叙
op-er-able /'Dperabl;
NAmE 'a:p-/ adj. 1 that functions; that can
be used运#的；可实行的；，可使用的：When wiZ〖 t/ie sin^Ze currency be
o^eraWe?什么时候实行单一货
市？ 2 (of
a medical condition 医疗状况）that can be treated by an operation 可以动手本的 nTJJ
inoperable
'opera glasses noun [pi.] small binoculars that people use in a theatre
to see the actors or singers on the stage 观剧小望远镜
'opera house noun a theatre where operas
are performed歌剧院
❶p.er.and /'Dparaend; /VAmf 'a:p-/
/7〇w/i
(/77fl^7e/rjfl"cs 数) the number on which an
operation is to be done 操作
数；运算数
Op-er-ate
th* /'Dpareit; NAmE'a.:^-/ verb
►
MACHINE 机器 1
[V] to work in a particular way 运转； 工作 PCT71 function
： Most domestic freezers operate at bdow-2S°C.多数家用冰柜能制冷到零下18摄氏度以
下。◊ Sokzrpanek can onZy operate i’n sunHg/it.太阳能 电池板只能在日光下起作用。◊ (//gwraf/ve) Some jpeopZe can onZy operate weH underpressure.有些人只有备压力
下才工作得好。2 [VN]_ to use or control a
machine or make it work 操作；备制；使运行：What sfci’ik are needed to
operate this machinery?操作这种机器需要什
么技能？
►
SYSTEM/PROCESS/SERVICE 系统；过程；服务 3 to be used or working; to use sth or make
it work (被■)使用； (使）运转： [V] A new late-night service is
now
operating.现垚推出一项新的深夜服务。◊ 77ie regulation operates in favour of married couples.
利于已婚夫妇。◊ [VN,] rhe airh'ne operatesyiighis ta 25 countries.这家航空公司经营飞往25个国家的航班。◊
►
OF BUSINESS/ORGANIZATION 企业;机构 4 [V] to
work in a particular way or from a particular place (%以某方'式 或从某地方）.经营，营业：TheypZan to 〇jpemte_/i*om a new ojSftce in Edinburgh.他们计細由爱丁堡的新办事处经
营。◊ iHegaZ drinking dubs continue
to operate in the city.非法饮酒俱乐部继续在城内营业。
►
MEDICAL I' ^ 5 [V]〜（on sb) (for sth) to cut open sb’s body in order to remove a
part that has a disease or to repair a part that is damaged 动手术：The doctors operatecHast night.医生昨夜做手朵了。◊ We vviH have to
operate on his eyes.我们#给祕的眼目i动丰术。
►
OF SOLDIERS ! 6 [V]
to be involved in military
activities in a place (忐某地）采取军事行动：Troops are operating_/fom bases
fn the north.部队主众北部基地
发动军事行动。
'operating system noun a set of programs that
controls the way a computer works and runs other programs (计算机）操作系统
'operating
table noun a special table that you
lie on to have a medical operation in a hospital,手来台：The patient died on the operating table (= during an oper-
ation).病人死在手术备上。
'operating theatre (also theatre) (both Sr£) {NAmE operating room) noun a room in a hospital
used for medical operations 手术室
〇p-er-ati〇n /.Dpa'reijn; NAmE,a:ip-/
noun
►
MEDICAL KJr 1 (also BrE informal op) [C] ~ (on sb) (for sth) |! ~ (to do sth) the process of cutting open a part of a
person’s body in order to remove or repair a damaged part:手术：an operation on her lung to remove a tumour为她命命部肿瘤切除手术◊ WfH J need
to have an operation?我需要动手术吗？ offe underwent a three-hour heart operation.他接受了三个小时的心脏手
■术 0 ◊ Doctors pe//ormed an emergency operation /or