A2 noun /ˈɒpərə/

opera

歌剧

Meaning

a dramatic performance in which the actors sing most of their lines

Example

We watched a beautiful opera at the theater last night.

我们昨晚在剧院观看了一场美丽的歌剧。

C1 verb /əbˈstrʌkt/

obstruct

阻碍

Meaning

to block or hinder progress; to prevent or impede movement

Example

The fallen tree obstructed the road for several hours.

倒下的树挡住了路几个小时。

C2 noun /ˈɔːrɪndʒfɪn ˈleɪbiːoʊ/

Orangefin labeo

橙鳍鲤

Meaning

a freshwater fish species native to South Asian rivers, commonly found in Bangladesh and India

Example

The orangefin labeo is an important food fish in Bangladesh.

橙鳍鲤是孟加拉国重要的食用鱼。

A1 adjective /oʊld/

old

旧的

Meaning

having lived for a long time; not new or young

Example

He still drives his old car.

他仍然开着他的旧车。

C1 noun ɔːrˈdiːl

ordeal

艰难的考验

Meaning

A physical or mental painful experience that must be endured

Example

Surviving the wilderness was a tough ordeal for them.

在野外生存对他们来说是一场艰难的考验。

B2 noun /əˈfens/

Offence

罪行; 侵犯法规

Meaning

a breach of law or rule; an annoyance or resentment

Example

Stealing is a serious offence punishable by law.

盗窃是严重的罪行，依法可追究。

B2 adjective /ˌfæʃ.ənd/

Outdated

过时

Meaning

obsolete; no longer current

Example

This computer software is completely outdated.

这个软件完全过时了。

B2 adjective /ˌɑːp.təˈmɪs.tɪk/

optimistic

乐观的

Meaning

hopeful and confident about the future

Example

She is optimistic about the success of her new project.

她对新项目的成功持乐观态度。

B2 noun/verb /ˈoʊvərˌdoʊs/

overdose

过量服药

Meaning

An excessive and dangerous amount of a drug; to take too much of a substance.

Example

He was rushed to the hospital after a drug overdose.

他因毒品过量被送进了医院。

B2 noun ˈɒksɪdʒən prəˈdʌkʃən

oxygen production

氧气生产

Meaning

The process of generating oxygen through photosynthesis or other means.

Example

Plants are vital for oxygen production and the maintenance of life.

植物对于氧气生产和维持生命至关重要。

B1 noun ˌɔː.ɡən.aɪˈzeɪ.ʃənz

organizations

组织

Meaning

Organized groups of people with a particular purpose

Example

Organizations play a key role in policymaking.

组织在政策制定中发挥着重要作用。

B2 adjective ˌɒp.ərˈeɪ.ʃən.əl

operational

操作的

Meaning

In working order; ready for use.

Example

The space project will be operational by 2025.

太空项目将在2025年投入使用。

C1 noun /ˌɒbstəˈtrɪʃən/

obstetrician

产科医生

Meaning

A doctor specializing in pregnancy, childbirth, and women's reproductive health.

Example

The obstetrician monitored the mother’s health throughout the pregnancy.

产科医生在整个怀孕过程中监测了母亲的健康。

B2 adjective /aʊtˈstændɪŋ/

outstanding

杰出

Meaning

extremely good or impressive; not yet resolved or paid

Example

She received an award for her outstanding performance.

她因出色的表现获得了奖项。

B1 verb /ˈɒpəreɪtɪŋ/

operating

操作

Meaning

to control or manage the functioning of something

Example

The company has been operating in this market for five years.

公司已经在这个市场运营了五年。

B1 adjective /əˈfɪʃəl/

official

官方

Meaning

relating to or connected with an authority or public office

Example

He is the official spokesperson for the company.

他是公司的官方发言人。

C2 noun /ˈɔː.rɪ.fɪs/

orifice

孔

Meaning

an opening or hole, especially in the body or a device

Example

The medicine was applied through a small orifice in the device.

药物通过设备上的一个小孔应用。

B2 noun /ˈɔːkɪstrə/

orchestra

管弦乐队

Meaning

a large group of musicians playing different instruments together

Example

The orchestra performed beautifully at the concert.

管弦乐队在音乐会上演奏得非常出色。

B2 noun /ˈɔr.fən.ɪʒ/

Orphanage

孤儿院

Meaning

an institution for the care and education of children who have lost their parents

Example

The charity built a new orphanage for homeless children.

慈善机构为无家可归的孩子建了一个新孤儿院。

B2 noun /ˈaʊt.breɪk/

Out-break

爆发

Meaning

a sudden occurrence or eruption of something, especially disease or violence

Example

The outbreak of flu affected many students in the school.

流感的爆发影响了学校的许多学生。

C1 verb /ˈɒfsɛt/

offset

抵消

Meaning

To counterbalance or compensate for something.

Example

The company's losses were offset by gains in other departments.

公司的亏损通过其他部门的收益得到了弥补。

B2 noun /ˈaʊtˌsɛt/

outset

开始

Meaning

the beginning or start of something

Example

From the outset, the project seemed ambitious but achievable.

从一开始，项目看起来雄心勃勃但可以实现。

C2 verb /ˈɑːblɪˌɡeɪt/

obligate

强迫

Meaning

to bind legally or morally; to compel someone to do something

Example

The contract obligates the company to provide timely service.

合同使公司有义务提供及时服务。

C2 noun /ˈɑb.lə.kwi/

Obloquy

严厉的批评或言语侮辱；公开谴责

Meaning

harsh criticism or verbal abuse; strong public condemnation

Example

The politician faced obloquy after the scandal.

政治家在丑闻之后遭遇了严厉的批评。

B1 adjective /əˈrɪdʒ.ɪ.nəl/

Original

原始的; 主要的; 真实的

Meaning

first; fundamental; primary; authentic

Example

This is the original document, not a copy.

这是原始文件，不是副本。

B2 adjective /əˈpəʊzd/

opposed

反对的

Meaning

being against or in disagreement with something

Example

She is strongly opposed to animal testing.

她坚决反对动物实验。

C2 noun /ˈɔːrdnəns/

ordnance

军火

Meaning

Military supplies including weapons, ammunition, and combat equipment.

Example

The army stored ordnance in a secure facility outside the city.

军队在城市外的一个安全设施中存储军火。

C1 verb /əˈprɛs/

oppress

压迫

Meaning

to keep someone down by harsh and unfair use of authority; to suppress

Example

The dictator oppressed the people for decades.

独裁者压迫人民数十年。

C2 noun /ˈɑːbəlɪsk/

obelisk

方尖碑

Meaning

A tall, four-sided, narrow tapering monument with a pyramid-shaped top.

Example

The ancient Egyptians built obelisks to honor their gods.

古埃及人建造了方尖碑来纪念他们的神。

C2 noun /ˈɔːrdʒi/

orgy

荒淫派对

Meaning

A wild party involving excessive indulgence, especially of a sexual nature.

Example

The novel described a scandalous orgy in a wealthy mansion.

小说描述了在一座富裕的豪宅里举行的丑闻般的荒淫派对。

B1 adjective /əˈkeɪ.ʒən.əl/

Occasional

偶然的

Meaning

occurring infrequently or irregularly; happening from time to time

Example

She enjoys occasional walks in the park.

她喜欢在公园里偶尔散步。

C1 verb /ˈɔːstrəˌsaɪz/

ostracize

排斥

Meaning

to exclude someone from a group or society; to banish or shun

Example

After the scandal, he was ostracized by his former colleagues.

丑闻发生后，他被前同事排斥。

C2 adjective /ˈoʊ.pən ˈhɑrt.ɪd/

Open-hearted

开放的心; 慷慨和真诚; 热情接纳;

Meaning

Kind and generous; sincere and honest; warmly receptive;

Example

She welcomed the strangers with an open-hearted smile and invited them for dinner.

她以开放的微笑欢迎陌生人，并邀请他们共进晚餐。

C1 adjective /ˌɑːpərˈtuːn/

opportune

合适的时刻

Meaning

Happening at a suitable or convenient time.

Example

She arrived at an opportune moment to help.

她在合适的时刻到达，准备帮助。

C1 adjective ˈɒptɪmaɪzd

optimized

优化, 改善, 更有效

Meaning

Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.

Example

The system has been optimized for faster performance.

系统已经针对更快的性能进行了优化。

C1 noun /ɔːr/

Oar

桨

Meaning

a long pole with a flat blade used to row a boat

Example

He dipped the oar into the water and pulled the boat forward.

他将桨浸入水中并拉动船向前。

C1 adjective /ˈɒptɪməm/

optimum

最优

Meaning

Most conducive to a favorable outcome; best.

Example

To achieve optimum results, we need to improve efficiency.

为了获得最佳结果，我们需要提高效率。

B2 adjective /ˈɒnɡəʊɪŋ/

ongoing

进行中

Meaning

continuing; still in progress

Example

The ongoing project will finish next month.

进行中的项目将在下个月完成。

B2 noun /ˈɒfərɪŋ/

offering

提供

Meaning

something that is given, especially as a gift or contribution

Example

The company’s latest offering is an eco-friendly car.

公司的最新产品是一款环保汽车。

C2 adjective /ˈəʊ.dər.əs/

Odorous

芬芳的; 香气的

Meaning

having a strong smell; fragrant; aromatic

Example

The garden was filled with odorous flowers.

花园里充满了芬芳的花朵。

B2 noun /ˈɒp.tɪ.mɪ.zəm/

optimism

乐观

Meaning

Hopefulness and confidence about the future or the successful outcome of something.

Example

Her optimism helped her overcome difficult times.

她的乐观帮助她克服了困难的时光。

C1 adjective /ˌoʊvərˈbɛrɪŋ/

overbearing

专横

Meaning

unpleasantly or arrogantly domineering

Example

His overbearing attitude made everyone uncomfortable.

他的专横态度让所有人都感到不舒服。

C1 adjective /əˈblaɪdʒɪŋ/

obliging

乐于助人

Meaning

Willing to help or do favors; accommodating.

Example

The staff at the hotel were very obliging and friendly.

酒店的工作人员非常乐于助人且友好。

A1 adjective /ˈɔːr.ɪndʒ/

Orange

橙色

Meaning

having a color between red and yellow like that of a ripe orange fruit

Example

The orange sunset painted the sky magnificently.

橙色的日落把天空画得非常壮丽。

B2 noun /ˈɒpəreɪtər/

operator

操作员

Meaning

a person who operates equipment, a business, or controls something

Example

The machine operator ensured that everything ran smoothly.

机器操作员确保一切顺利运行。

C1 noun ˌoʊ.vɚˈɡreɪ.zɪŋ

overgrazing

过度放牧

Meaning

The practice of allowing livestock to graze to the point of damaging vegetation.

Example

Overgrazing leads to soil erosion and loss of biodiversity.

过度放牧导致土壤侵蚀和生物多样性的丧失。

B2 verb /ˌoʊvərˈsiː/

oversee

监督

Meaning

to supervise or watch over something; to manage and direct

Example

The manager will oversee the entire construction project.

经理将监督整个建筑项目。

C1 adjective /aʊtˈmoʊdɪd/

outmoded

过时的

Meaning

No longer in fashion or useful; outdated.

Example

That old computer is completely outmoded.

那台旧电脑完全过时了。

C2 adjective /ˈɒsiəs/

osseous

骨质的

Meaning

consisting of or turned into bone; bony

Example

The fossil showed osseous structures of the ancient creature.

化石展示了古老生物的骨质结构。

B2 verb /ˌoʊvərˈduː/

overdo

做得过火

Meaning

to do something too much; to exaggerate or carry to excess

Example

Don't overdo the exercise on your first day at the gym.

第一天去健身房时不要运动过度。

C1 noun /ˈoʊvərˌtʊr/

overture

序曲 / 提议

Meaning

An introduction to something more substantial; a proposal or preliminary action.

Example

The peace overture was welcomed by both nations.

和平提议得到了两个国家的欢迎。

C1 adjective /əbˈdʒek.ʃən.ə.bəl/

Objectionable

令人反感的

Meaning

arousing distaste or opposition; unpleasant or offensive

Example

His objectionable behavior made everyone uncomfortable.

他的令人反感的行为让每个人都感到不舒服。

B2 noun /əbˈdʒek.ʃən/

Objection

反对; 异议; 抗议;

Meaning

an expression of disagreement or disapproval; a reason for disagreeing

Example

The lawyer raised an objection during the trial.

律师在审判过程中提出了异议。

C2 verb /aʊtˈraɪd/

outride

超越

Meaning

to ride faster, farther, or better than someone else

Example

The young rider managed to outride his competitors in the race.

年轻的骑手在比赛中成功超越了他的竞争对手。

B2 verb /ˌoʊvərˈwɛlm/

overwhelm

Meaning

to overpower someone emotionally or physically; to be too much to handle

Example

She was overwhelmed with gratitude after receiving the help.

C1 verb /aʊtˈlæst/

outlast

比...持续更久

Meaning

to continue longer than; to endure beyond someone or something else

Example

The old castle has outlasted many generations.

这座古老的城堡已经比许多代人持续得更久。

C1 verb /ˌoʊvərˈrʌn/

overrun

侵占

Meaning

to spread over or occupy completely; to exceed a limit or time

Example

The garden was overrun with weeds.

花园被杂草淹没。

C1 verb /ˈɒs.ɪ.leɪt/

oscillate

在两个点或状态之间来回摆动或移动

Meaning

To swing or move back and forth between two points or states

Example

The stock market tends to oscillate during uncertain times.

股市在不确定的时期往往会波动。

C1 adjective /ɔːˈneɪt/

ornate

华丽的

Meaning

elaborately or highly decorated

Example

The palace hall was filled with ornate furniture and paintings.

宫殿的大厅里充满了华丽的家具和画作。

B2 verb /ɒpt/

opt

选择

Meaning

to choose or decide to do something instead of something else

Example

Many students opt to study abroad for better opportunities.

许多学生选择出国留学以获得更好的机会。

B2 noun ˈaʊt.pʊt

output

产量

Meaning

The amount of something produced by a person, machine, or industry.

Example

Climate change reduces agricultural output.

气候变化减少农业产量。

B1 verb /ˈɔːrɡənaɪz/

organize

组织

Meaning

to arrange systematically; to plan and coordinate

Example

She organized a surprise party for her friend.

她为她的朋友组织了一个惊喜派对。

C1 noun /əbˈstrʌkʃən/

obstruction

障碍

Meaning

Something that blocks or gets in the way; the action of obstructing.

Example

There was an obstruction on the railway track.

铁路上有一个障碍。

C1 noun /ˈɔɪntmənt/

ointment

药膏

Meaning

A smooth, oily substance applied to the skin for healing or soothing.

Example

The doctor prescribed an ointment for the burn on his arm.

医生为他手臂上的烧伤开了一种药膏。

B2 noun ˈəʊ.və.hed

overhead

管理费用

Meaning

Ongoing business expenses not directly attributable to creating a product or service.

Example

The company reduced its overhead to increase profits.

公司减少了管理费用以增加利润。

B2 adjective /ˈɔː.rəl/

Oral

口头的；与嘴巴相关的

Meaning

spoken rather than written; relating to the mouth

Example

The oral examination will test your speaking skills.

口头考试将测试你的口语技能。

A1 preposition /ʌv/

of

的

Meaning

expressing the relationship between a part and a whole

Example

The book is on the table, in front of the window.

书在桌子上，在窗户前。

C2 noun /ˌɔːrdɪˈneɪʃən/

ordination

任职

Meaning

The ceremony of conferring holy orders or official religious authority.

Example

The church held a special service for the ordination of new priests.

教堂为新神父举行了一个特别的服务，进行圣职任命。

B2 noun /ˈoʊvərpæs/

overpass

立交桥

Meaning

A bridge that carries one road or railway over another.

Example

The new overpass reduced traffic congestion in the city.

新的立交桥减少了城市的交通拥堵。

A1 adverb /ɔːf/

off

关

Meaning

away from a place, position, or time; not functioning

Example

He turned off the light before leaving the room.

他在离开房间之前关掉了灯。

C2 verb /əbˈvɜːrt/

obvert

反转

Meaning

To turn something so as to face in a different direction; in logic, to convert a proposition by negating both subject and predicate.

Example

The teacher asked the students to obvert the statement for practice.

老师要求学生练习将声明进行奥贝特。

A2 noun /ˈɒbdʒɪkt/

object

物体

Meaning

a thing that can be seen and touched

Example

The table is an object in the room.

桌子是房间里的一个物体。

B2 noun /ˈoʊ.dər/

Odour

气味

Meaning

a distinctive smell, especially an unpleasant one

Example

The odour of fresh bread filled the kitchen.

新鲜面包的气味充满了厨房。

B2 noun /ˈɔɪ.stər/

Oyster

生蚝

Meaning

a type of shellfish that can be eaten and sometimes contains pearls

Example

She ordered fresh oysters at the seafood restaurant.

她在海鲜餐厅点了新鲜的生蚝。

C1 noun /ˈɒktɪv/

octave

Meaning

A series of eight musical notes, or the interval between one musical pitch and another with double its frequency.

Example

The singer's voice could easily reach the higher octave.

B2 noun ˈəʊnəʃɪp

ownership

所有权

Meaning

The act, state, or right of possessing something; legal title to something.

Example

Ownership of resources was crucial.

资源的所有权至关重要。

C2 adjective /ˌoʊvərˈwiːnɪŋ/

overweening

过度自负

Meaning

excessively arrogant or prideful

Example

His overweening pride cost him many friends.

他过度的自豪让他失去了许多朋友。

C1 adjective /oʊˈvɜːrt/

overt

公开的

Meaning

Done or shown openly; not hidden or secret.

Example

There was an overt display of hostility between the rivals.

在对手之间有一种公开的敌意表现。

C1 noun /əˈpreʃ.ən/

Oppression

压迫; 虐待; 暴政;

Meaning

cruel or unjust treatment or exercise of authority; the state of being subject to harsh treatment

Example

The people fought against political oppression.

人民反对政治压迫而斗争。

C2 verb /ˈɑːbvieɪt/

obviate

消除

Meaning

To remove a need or difficulty; to prevent or avoid something.

Example

This new system obviates the need for manual data entry.

这个新系统消除了手动输入数据的需要。

A2 noun /əˈlɪmpɪks/

olympics

奥林匹克运动会

Meaning

an international sports competition held every four years with athletes from many countries

Example

The Olympics bring athletes from all over the world together.

奥林匹克运动会将全世界的运动员聚集在一起。

C2 noun /əˈblɪkwɪti/

obliquity

歪曲

Meaning

Deviation from moral or usual conduct; indirectness or lack of straightforwardness.

Example

The politician was criticized for the obliquity of his answers.

那位政治家因其回答的歪曲性而受到批评。

C2 noun /ˈɔːfəl/

offal

内脏

Meaning

the internal organs and entrails of an animal used as food; waste parts

Example

The butcher prepared sausages using pork offal.

屠夫使用猪的内脏做香肠。

C1 verb /əbˈsɛs/

obsess

Meaning

To preoccupy or fill the mind of someone continually and to an excessive degree.

Example

She tends to obsess over small details.

A2 adjective /ˈɑp.ə.zɪt/

Opposite

相反的; 完全不同的; 面对面; 反向的;

Meaning

Contrary; completely different; facing each other; reverse;

Example

They have opposite views on politics but remain good friends.

他们在政治上的观点相反，但仍然是好朋友。

B2 noun /ˌoʊ.vɚˈkraʊ.dɪŋ/

overcrowding

过度拥挤

Meaning

Excessive crowd or packed condition, having more people or vehicles in a place than the approved capacity.

Example

The subway system suffers from severe overcrowding during peak hours.

地铁系统在高峰时段面临严重的过度拥挤。

A1 adjective /oʊˈkeɪ/

ok

好的

Meaning

used to indicate agreement, approval, or understanding

Example

Okay, let's go to the park.

好的，我们去公园。

B1 noun /ˈɑp.ʃən/

Option

选项

Meaning

a thing that is or may be chosen; an alternative course of action

Example

You have the option to work from home or office.

你可以选择在家工作或在办公室工作。

B2 verb /ˌoʊvərˈlʊk/

overlook

忽略

Meaning

to fail to notice or consider something; to have a view from above

Example

It's easy to overlook small details when you're in a hurry.

当你赶时间时，很容易忽略小细节。

A2 adverb; noun /ˌaʊtˈdɔːrz/

outdoors

在户外

Meaning

outside a building; the natural environment outside

Example

We spent the whole afternoon outdoors enjoying the fresh air.

我们整个下午都在户外享受新鲜空气。

B2 noun/verb /ˈaʊtreɪdʒ/

outrage

愤怒

Meaning

A strong feeling of anger and shock; to arouse anger or shock.

Example

The unfair decision caused public outrage.

不公正的决定引起了公众的愤怒。

B2 adjective /əˈfen.sɪv/

Offensive

冒犯的; 侮辱的; 攻击性的

Meaning

causing displeasure or resentment; insulting; aggressive

Example

His offensive remarks hurt everyone's feelings.

他的冒犯言论伤害了每个人的感情。

B2 noun /ˈaʊtskɜːrts/

outskirts

城市边缘

Meaning

The outer parts of a town or city, away from the center.

Example

They moved to the outskirts of the city for a quieter life.

他们为了更安静的生活搬到了城市的边缘。

A1 preposition, adverb /ˈoʊvər/

over

在…上面

Meaning

across, on top of, or beyond

Example

The book is lying over the table.

书在桌子上面。

C2 noun /əbˈsɪdiən/

obsidian

黑曜石 (黑色的玻璃状火山岩)

Meaning

A hard, dark, glasslike volcanic rock formed by rapid solidification of lava.

Example

The knife was made from sharp obsidian.

刀是由锋利的黑曜石制成的。

C1 adjective /ˈɒm.ɪ.nəs/

Ominous

不祥的; 威胁的

Meaning

giving the impression that something bad will happen; threatening; foreboding

Example

The dark clouds looked ominous before the storm.

暴风雨前，黑云看起来预示着灾难。

C1 adjective /əbˈsɛsɪv/

obsessive

强迫症的

Meaning

Relating to or characterized by an obsession; thinking about something too much.

Example

He has an obsessive interest in cleanliness.

他对清洁有强迫症的兴趣。

C2 noun /ˈɒlɪv brɑːntʃ/

olive-branch

橄榄枝

Meaning

A symbol of peace or reconciliation; an offer to end conflict.

Example

He extended an olive-branch to his rival after years of hostility.

他在多年敌对之后向他的对手伸出了橄榄枝。

C2 noun /ˈɒlɪv bɑːb/

Olive barb

橄榄鲃

Meaning

A small freshwater fish with olive-colored body and barbels

Example

The olive barb is commonly found in South Asian rivers.

橄榄鲃常见于南亚的河流中。

B1 noun ˌɒpəˈtjuːnɪtiz

opportunities

机会

Meaning

A set of circumstances that makes it possible to do something; chances for advancement or success.

Example

Opportunities for jobs decreased.

工作的机会减少了。

A1 pronoun /aʊərz/

ours

我们的

Meaning

belonging to or associated with us

Example

This victory is ours.

这个胜利是我们的。

A1 noun /ɒkˈtoʊbər/

october

十月

Meaning

the tenth month of the year in the Gregorian calendar

Example

The weather becomes cooler in October.

十月天气开始变凉。

B1 noun /ˌɒpəˈreɪʃən/

operation

手术

Meaning

an act or process of functioning or operating

Example

The hospital performed a successful operation.

医院进行了成功的手术。

B2 noun /ˈoʊ.vər ɡroʊθ/

Over growth

过度生长

Meaning

excessive growth beyond normal size; too much development or expansion

Example

The overgrowth of weeds made the garden look untidy.

杂草的过度生长让花园显得不整洁。

C1 verb /aʊtˈwɪt/

outwit

智胜

Meaning

to defeat or gain an advantage over someone by being more clever or cunning

Example

The fox managed to outwit the hunters.

狐狸成功地智胜了猎人。

C2 noun /ˌɒpəˈrɛtə/

operetta

轻歌剧

Meaning

a short opera with light and humorous themes

Example

The theater staged a famous operetta by Gilbert and Sullivan.

剧院上演了吉尔伯特与沙利文的著名轻歌剧。

B2 noun /əˈfɛns/

offense

犯罪

Meaning

an illegal act; a crime

Example

The offense was committed in broad daylight.

这个犯罪是在白天犯下的。

B1 noun /ˈɔr.ə.ʒɪn/

Origin

起源

Meaning

the point or place where something begins, arises, or is derived; the source

Example

Scientists are studying the origin of the universe.

科学家正在研究宇宙的起源。

A2 adjective /ˈaʊtdɔːr/

outdoor

户外

Meaning

situated, existing, or done outside a building

Example

We planned an outdoor picnic for the weekend.

我们计划了一个户外野餐，周末进行。

B1 noun əbˈdʒek.tɪv

objective

目标

Meaning

A thing aimed at or sought; a goal.

Example

The main objective is to test sustainability.

主要目标是测试可持续性。

C2 noun /ɒmˈnɪpətəns/

omnipotence

全能

Meaning

The quality of having unlimited power or authority.

Example

Many religions describe God’s omnipotence as absolute.

许多宗教将上帝的全能描述为绝对的。

B2 adjective ɔːrˈɡæn.ɪk

organic

有机的

Meaning

Produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents.

Example

Organic farming improves soil health and reduces pollution.

有机农业改善土壤健康并减少污染。

B2 noun /ˈɒt.ər/

Otter

水獺

Meaning

a mammal with webbed feet that lives near water and feeds on fish

Example

The playful otter swam gracefully in the river.

顽皮的水獺优雅地在河里游泳。

C2 noun /ˈoʊdiəm/

odium

憎恶

Meaning

general or widespread hatred or disgust directed toward someone as a result of their actions

Example

The scandal brought public odium on the corrupt minister.

丑闻让腐败的部长蒙受了公众的憎恶。

B1 noun /ˈɒbstəkəlz/

obstacles

障碍

Meaning

Things that block one's way or prevent or hinder progress.

Example

Obstacles in life can often lead to valuable lessons.

生活中的障碍常常导致宝贵的教训。

C2 verb /ˈɑːskjʊleɪt/

osculate

亲吻

Meaning

To kiss.

Example

They osculated under the mistletoe during the party.

他们在派对上在槲寄生下接吻。

C1 noun /ɒpˈtɒmətri/

optometry

验光学

Meaning

The practice or profession of examining the eyes and prescribing corrective lenses.

Example

She studied optometry at the university to become an eye specialist.

她在大学学习验光学，成为一名眼科专家。

B2 verb /ˌoʊvərˈkʌm/

overcome

克服

Meaning

To succeed in dealing with a problem or difficulty.

Example

You can overcome procrastination with planning.

你可以通过计划来克服拖延症。

C1 adjective /ˌəʊ.vərˈɑː.tʃɪŋ/

overarching

总体, 包容, 全面

Meaning

Comprehensive or all-embracing; forming an arch over something.

Example

The overarching theme of the book is human resilience.

这本书的总体主题是人类的韧性。

B2 adverb /ˌoʊvərˈnaɪt/

Overnight

一夜之间; 突然; 非常快速

Meaning

during the night; suddenly; very quickly

Example

The city was transformed overnight.

这座城市一夜之间发生了变化。

A2 noun /ˈʌv.ən/

Oven

烤箱

Meaning

an enclosed compartment used for heating, baking, or drying food

Example

She baked cookies in the oven for thirty minutes.

她在烤箱里烤了三十分钟的饼干。