B2 noun /ˈaʊtlet/

outlet

出口

Meaning

a means by which something is released, expressed, or distributed

Example

Art is a great outlet for emotions.

艺术是情感的一个极好的出口。

C1 adjective /əbˈstrʌk.tɪv/

Obstructive

阻碍性的

Meaning

deliberately creating difficulties or preventing progress; hindering or blocking something

Example

The obstructive policies hindered economic growth.

这些阻碍性的政策阻碍了经济增长。

C1 noun ˈaʊt.sɔːr.sɪŋ

outsourcing

外包

Meaning

The practice of having certain job functions done outside a company instead of having an in-house department or employee handle them.

Example

Many companies use outsourcing to reduce labor costs.

许多公司使用外包来降低劳动力成本。

C1 adjective /ɒˈstɛnsəbl/

ostensible

表面上

Meaning

stated or appearing to be true, but not necessarily so

Example

His ostensible reason for leaving was illness, but many doubted it.

他离开的表面上原因是生病，但许多人对此表示怀疑。

B2 noun /əˈpoʊ.nənt/

Opponent

对手; 竞争者

Meaning

a person who disagrees with or resists a proposal or practice; someone who competes against another

Example

The chess player defeated his strongest opponent.

象棋选手击败了他最强的对手。

C1 noun /ɒpˈtɒmɪtrɪst/

optometrist

眼科验光师

Meaning

A healthcare professional who examines eyes and prescribes corrective lenses.

Example

The optometrist prescribed new glasses for her.

眼科验光师为她开了新的眼镜。

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。

B2 noun /ˌɒb.zəˈveɪ.ʃənz/

observations

观察

Meaning

The action or process of observing something carefully.

Example

Observations of distant galaxies provide new insights.

对遥远星系的观察提供了新的见解。

C2 verb /əbˈtruːd/

obtrude

强行介入

Meaning

to force oneself or one's ideas into a situation uninvited or inappropriately

Example

He didn’t want to obtrude into their private conversation.

他不想打扰他们的私人对话。

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 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 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 /ɔːrˈɡæn.ɪk ˈfɑːr.mɪŋ/

organic farming

有机农业

Meaning

Farming method that avoids synthetic chemicals and fertilizers, using natural methods instead.

Example

Organic farming improves soil health and reduces pollution.

有机农业改善了土壤健康并减少了污染。

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 /ɒmˈnɪʃəns/

omniscience

全知

Meaning

the state of knowing everything

Example

The novel's narrator has an air of omniscience, revealing every character's thoughts.

小说的叙述者具有全知的气质，揭示每个角色的想法。

C1 verb /ˌaʊtˈstrɛtʃ/

outstretch

伸展

Meaning

To extend or stretch something outward.

Example

He outstretched his hand to help her up.

他伸出手来帮助她站起来。

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 adjective /ˈɔːrnəri/

ornery

脾气暴躁的

Meaning

bad-tempered and combative; stubborn

Example

The ornery old man refused to leave his chair.

那个脾气暴躁的老头拒绝离开他的椅子。

C2 adjective /ɒˈstɛnsɪv/

ostensive

显性

Meaning

clearly demonstrative or pointing out; explicitly shown

Example

The teacher gave an ostensive example to clarify the concept.

老师举了一个显性的例子来阐明概念。

C1 noun /ˈɒptɪks/

optics

光学

Meaning

The branch of physics dealing with light and vision.

Example

She studied optics to understand how lenses work.

她学习了光学，以了解镜头是如何工作的。

C1 verb /ˌaʊtˈstrɪp/

outstrip

超越

Meaning

To go faster or do better than someone or something; to surpass.

Example

The company outstripped its competitors in sales last year.

公司在去年超越了它的竞争对手。

A2 verb /ˈɔːfər/

offer

提供

Meaning

to present something for acceptance or rejection; to propose

Example

She offered to help with the project.

她提出帮助这个项目。

C2 noun (plural) /ˈɔːrdʒiːz/

orgies

狂欢

Meaning

Wild gatherings involving excessive indulgence in food, drink, or sexual activity.

Example

The ancient Romans were infamous for their lavish feasts and orgies.

古罗马人以其奢华的宴会和狂欢而闻名。

B2 noun oʊˈbiː.sə.t̬i

obesity

肥胖症

Meaning

The condition of being grossly fat or overweight.

Example

Obesity increases the risk of diabetes and heart disease.

肥胖症增加糖尿病和心脏病的风险。

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。

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。

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 /ˈɒp.ʃən.əl/

Optional

可选的

Meaning

not compulsory; left to choice

Example

Wearing a tie is optional for this event.

穿领带是这个活动的可选项。

C1 adjective /ˈɒptɪkəl/

optical

光学的

Meaning

related to or used in seeing or sight

Example

The optical illusion fooled everyone at the exhibition.

光学幻觉在展览会上迷惑了所有人。

B1 noun /əˈpɪn.jən/

Opinion

意见

Meaning

a view or judgment formed about something; a belief or assessment based on grounds short of proof

Example

In my opinion, this is the best solution.

在我看来，这是最好的解决方案。

C2 verb /ˈɑːbdʒərˌɡeɪt/

objurgate

严厉批评

Meaning

to scold or rebuke severely

Example

The teacher objurgated the student for being dishonest.

老师因为学生不诚实而严厉批评了他。

C2 noun /ˈɒn.rʌʃ/

onrush

突如其来的冲击

Meaning

A sudden powerful forward or downward rush or flow.

Example

The onrush of water swept away the bridge.

水流的突如其来冲击冲走了桥梁。

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 /ɒdz/

odds

可能性

Meaning

the likelihood or probability of something happening; chances for or against something

Example

The odds of winning the lottery are very low.

中彩票的机会非常小。

C1 adjective /əˈprɛs.ɪv/

Oppressive

压迫的

Meaning

Harsh and authoritarian; overwhelming; causing distress; tyrannical;

Example

The oppressive heat made it difficult to work outside during the summer.

压迫性的热浪使得夏天在外工作变得很困难。

C1 adverb /ˈɒp.tɪ.məl.i/

optimally

最优地

Meaning

In the most effective or efficient way possible.

Example

Tasks should be allocated optimally for maximum output.

任务应当最优地分配，以实现最大产出。

A2 adjective/adverb /ˈɒnˌlaɪn/

online

在线

Meaning

connected to or available through the internet

Example

I prefer shopping online rather than going to stores.

我更喜欢网上购物，而不是去商店。

C1 noun /ˈɑːlɪˌɡɑːrki/

oligarchy

寡头政治

Meaning

A small group of people having control of a country, organization, or institution.

Example

The nation was ruled by a wealthy oligarchy that controlled all resources.

这个国家由一个富有的寡头集团统治，控制着所有资源。

C1 adjective /əˈkʌlt/

occult

奥秘的

Meaning

Relating to mysterious, supernatural, or magical powers and practices.

Example

She had always been fascinated by the occult and its hidden knowledge.

她一直对奥科尔特及其隐藏的知识感到着迷。

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。

B1 verb অকার্স

occurs

发生

Meaning

Happens or takes place, especially as a result of something.

Example

Snowfall occurs in regions with freezing temperatures.

在气温低于零度的地区会发生降雪。

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。

C1 noun /ˌɑːk.sɪˈmɔːr.ɒn/

oxymoron

矛盾修饰法

Meaning

a figure of speech where two contradictory terms are combined

Example

The phrase 'deafening silence' is a classic oxymoron.

短语 '震耳欲聋的寂静' 是一个经典的矛盾修饰法。

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。

C2 noun /ˈɒkjʊlɪst/

oculist

眼科医生

Meaning

An old-fashioned term for an eye doctor or ophthalmologist.

Example

The village oculist was known for treating various eye diseases.

村里的眼科医生以治疗各种眼病而闻名。

C1 adverb /ˈaʊtwədli/

Outwardly

表面上; 外观上;

Meaning

on the surface; externally; in appearance

Example

Outwardly, he seemed calm, but inside he was nervous.

表面上，他看起来很冷静，但内心却很紧张。

B2 noun /ˈɒs.trɪtʃ/

Ostrich

鸵鸟

Meaning

a large flightless bird native to Africa with long legs and neck

Example

The ostrich is the world's largest bird.

鸵鸟是世界上最大的鸟。

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。

C1 verb /ˌoʊvərˈʃædoʊ/

overshadow

掩盖

Meaning

to appear more important or significant than something else, reducing its impact

Example

The scandal overshadowed his achievements.

丑闻掩盖了他的成就。

C1 adjective əˈblɪv.i.əs

oblivious

无意识的

Meaning

Being completely unaware of surrounding events.

Example

He was oblivious to the noise around him while reading.

他在阅读时完全没有意识到周围的噪音。

Meaning

as a noun: a person who breaks the law and lives outside its protection; as a verb: to make something illegal

Example

The government decided to outlaw the harmful practice.

B2 adverb /ˈoʊpənli/

Openly

公开地; 公共地

Meaning

in a frank and honest way; without concealment; publicly

Example

She spoke openly about her struggles with mental health.

她公开谈论了自己在心理健康方面的困难。

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 /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。

C2 adjective /ˈoʊ.vɔɪd/

ovoid

卵形

Meaning

egg-shaped; resembling an oval or ellipse

Example

The artist painted an ovoid shape in the center of the canvas.

艺术家在画布中心画了一个卵形的形状。

B1 adjective /ˈaʊtər/

outer

外部

Meaning

situated on or toward the outside; external

Example

The outer layer of the jacket is waterproof.

夹克的外层是防水的。

B2 noun /oʊk/

oak

橡树

Meaning

a large tree that produces acorns and has strong, hard wood

Example

The old oak tree provided shade for the entire yard.

那棵老橡树为整个院子提供了阴凉。

B2 adjective /ˈɔː.də.li/

Orderly

有序的; 系统的; 平静的

Meaning

well-organized; systematic; peaceful

Example

Please keep your desk orderly and clean.

请保持您的桌面整齐和干净。

C2 noun /ˌɔːrnɪˈθɒlədʒɪst/

ornithologist

鸟类学家

Meaning

a scientist who studies birds

Example

The ornithologist spent years studying migratory birds.

这位鸟类学家花了多年时间研究迁徙鸟类。

C2 noun /ˈoʊ.kəm/

oakum

旧绳纤维

Meaning

loose fibers obtained by untwisting old ropes, used for caulking ships

Example

The shipbuilders used oakum to seal the gaps in the wooden planks.

造船工人使用欧卡姆来密封木板之间的缝隙。

C2 adjective /ˈoʊ.pən ˈhæn.dɪd/

Open-handed

慷慨的; 自由的

Meaning

Generous; liberal; giving freely;

Example

He is very open-handed with his money and always helps those in need.

他对自己的钱非常慷慨，总是帮助有需要的人。

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。

B2 noun ɔːˈɡæn.ɪk fuːdz

organic foods

有机食品

Meaning

Food produced without the use of chemicals such as artificial pesticides, fertilizers, or other artificial agents.

Example

Organic foods are healthier than processed foods.

有机食品比加工食品更健康。

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 /ˌaʊtˈsaɪdə(r)/

outsider

局外人

Meaning

a person who is not accepted as a member of a particular group or community

Example

As a new student, she often felt like an outsider at school.

作为新生，她常常觉得自己在学校是个局外人。

C2 noun /ˌɒstɛnˈteɪʃən/

ostentation

炫耀

Meaning

excessive display of wealth or knowledge intended to attract admiration or envy

Example

The billionaire’s party was full of ostentation and luxury.

亿万富翁的派对充满了炫耀和奢华。

C1 noun /ˈaʊtˌɡroʊθ/

outgrowth

衍生物

Meaning

something that grows out of something else; a natural development or result

Example

The new policy was an outgrowth of years of debate.

新政策是多年辩论的衍生物。

A1 noun/adjective/adverb /ˌaʊtˈsaɪd/

outside

外面

Meaning

the external part or surface of something; beyond the boundary

Example

Children were playing outside in the yard.

孩子们在院子外面玩。

B1 noun /ˌɑk.jəˈpeɪ.ʃən/

Occupation

职业; 工作; 占领

Meaning

a job or profession; the action of taking control of a place

Example

Teaching is her chosen occupation.

教学是她选择的职业。

C1 adjective /ˌaʊt əv ðə ˈweɪ/

out-of-the-way

偏远的或不寻常的

Meaning

remote or unusual; not in a convenient or usual location

Example

They stayed in an out-of-the-way village.

他们住在一个偏远的村庄里。

C2 adjective /ˌoʊpəˈlɛsənt/

opalescent

欧泊色的

Meaning

showing or reflecting a milky, iridescent light like an opal

Example

The opalescent sky glowed with shades of pink and blue.

欧泊色的天空闪烁着粉色和蓝色的色调。

C1 adjective/adverb /ˌɒfˈhænd/

offhand

草率

Meaning

Without previous thought or preparation; casual and sometimes dismissive.

Example

She gave an offhand reply to his serious question.

她对他严肃的问题做出了一个草率的回答。

B2 noun /ˈoʊtˌmiːl/

oatmeal

燕麦粥

Meaning

A type of porridge made from ground oats, often eaten for breakfast.

Example

She eats a bowl of oatmeal every morning for breakfast.

她每天早晨吃一碗燕麦粥当早餐。

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 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。

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。

C1 noun /ˈɔr.ə.tər/

Orator

演说家

Meaning

a public speaker, especially one who is eloquent or skilled in speaking

Example

The famous orator delivered an inspiring speech.

这位著名的演说家发表了一场鼓舞人心的演讲。

B2 adjective /ˌoʊvərˈwɛlmɪŋ/

overwhelming

压倒性的

Meaning

Very intense; overpowering.

Example

Large tasks can feel overwhelming.

大型任务可能会让人感到压倒。

C2 noun /ˈɒbsɪkwiːz/

obsequies

葬礼仪式

Meaning

Funeral rites or ceremonies.

Example

The obsequies for the late leader drew thousands of mourners.

已故领导人的葬礼吸引了成千上万的哀悼者。

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 adverb /ˈaʊtraɪt/

Outright

直接; 完全; 毫不保留

Meaning

completely; directly; without reservation or concealment

Example

She rejected the proposal outright.

她直接拒绝了那个提案。

B2 noun /ɔːˈræŋ.ʊˌtæŋ/

Orang-Outang

猩猩

Meaning

a large arboreal ape with long reddish hair, long arms, and hooked hands and feet, native to Borneo and Sumatra

Example

The orangutan swings gracefully through the forest canopy.

猩猩优雅地穿越森林的树冠。

C1 noun /ˈoʊvərˌsiːər/

overseer

监督员

Meaning

a person who supervises work or workers; a manager

Example

The overseer made sure the workers followed safety rules.

监督员确保工人遵守安全规则。

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 /ˈɒstrəsɪzəm/

ostracism

排斥

Meaning

The act of excluding someone from a group or society.

Example

The student faced ostracism after breaking the rules.

学生在违反规则后遭受了排斥。

C2 verb /ˈoʊɡəl/

ogle

色迷迷地看

Meaning

To look at someone with obvious sexual interest.

Example

He kept ogling the models on the runway.

他一直盯着跑道上的模特看。

C2 adjective /ˈɑːsɪˌfaɪd/

ossified

变成骨头，僵硬

Meaning

Turned into bone or become rigid; unwilling to change.

Example

The company had an ossified management structure that resisted innovation.

该公司有一个僵化的管理结构，抵制创新。

C1 noun /ˈɔːrdɪnəns/

ordinance

法令

Meaning

An authoritative rule, law, or decree issued by a city, town, or authority.

Example

The city council passed an ordinance banning smoking in public parks.

市议会通过了一项法令，禁止在公共公园内吸烟。

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。

B1 adjective /ˈɔːɡənaɪzd/

organized

有条理的

Meaning

Arranged in a systematic way, especially on a large scale.

Example

An organized approach to work increases productivity and reduces stress.

有条理的工作方法可以提高生产力并减少压力。

A1 interjection /oʊ/

oh

哦

Meaning

used to express surprise, realization, or understanding

Example

Oh, I didn't know you were here!

哦，我不知道你在这里！

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。

B2 adjective; verb (past participle) /ˈɒkjʊpaɪd/

occupied

被占用的；被占领的

Meaning

being in use or taken; filled or lived in; controlled or held by force

Example

The room is occupied, so please wait outside.

房间被占用，请在外面等候。

A2 adjective /əˈlɪmpɪk/

olympic

奥林匹克

Meaning

related to the Olympic Games, a major international sporting event

Example

She trained hard to compete in the Olympic Games.

她努力训练，为了参加奥林匹克运动会。

C2 noun /ˈɒb.stɪ.nə.si/

obstinacy

固执

Meaning

Stubborn refusal to change one's opinion or chosen course of action, despite attempts to persuade one to do so.

Example

His obstinacy made negotiations difficult.

他的固执使谈判变得困难。

C2 adjective /ˌoʊdəˈrɪfərəs/

odoriferous

芬芳的

Meaning

having or giving off a smell, especially a strong or pleasant one

Example

The garden was filled with odoriferous flowers.

花园里充满了芬芳的花朵。

C2 adjective /ˈɒpjʊlənt/

opulent

奢华的

Meaning

Ostentatiously rich, luxurious, or lavish.

Example

They hosted an opulent wedding with gold decorations.

他们举办了一场奢华的婚礼，装饰有金色装饰品。

B2 adverb /əˈfɪʃəli/

officially

正式地

Meaning

in a formal or authorized way

Example

The building was officially opened by the mayor.

这座建筑由市长正式开幕。

A2 modal verb /ɔːt/

ought

应该

Meaning

Used to indicate duty, correctness, or moral obligation.

Example

You ought to respect your elders.

你应该尊重长辈。

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。

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。

C1 noun /ˈɔːrθədɑːksi/

orthodoxy

正统

Meaning

traditional or generally accepted beliefs and practices

Example

The religious leader defended the orthodoxy of the faith.

宗教领袖捍卫了信仰的正统性。

C2 adjective /ˈɒfɪʃ/

offish

冷淡

Meaning

Unfriendly, distant, or reserved in manner.

Example

He seemed offish at the party and avoided most conversations.

他在派对上显得很冷淡，避开了大多数谈话。

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。

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。

A2 noun /ˈɔr.dər/

Order

命令; 顺序

Meaning

a command or instruction; the arrangement of things following a particular sequence

Example

The teacher gave an order to sit down quietly.

老师下达了安静坐下的命令。

A1 pronoun /aʊər/

our

我们的

Meaning

belonging to or associated with the speaker and one or more other people

Example

This is our house.

这是我们的房子。

C1 noun /əˈkɜr.əns/

Occurrence

事件

Meaning

an instance or event of something happening; the fact of occurring

Example

The occurrence of earthquakes is common in this region.

地震的发生在这个地区很常见。

B2 adjective /ˌɔːɡənaɪˈzeɪʃənəl/

organizational

组织性的

Meaning

relating to the structure or arrangement of a company or group

Example

He works on improving the organizational structure of the company.

他在改善公司的组织结构方面工作。

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。

C1 noun /ˈaʊtpoʊst/

outpost

前哨站

Meaning

A small military camp or position at some distance from the main force, used especially as a guard.

Example

The soldiers were stationed at a remote outpost.

士兵们被驻扎在一个偏远的前哨站。

B2 verb /ˌoʊvərˈtɜrn/

overturn

推翻 / 取消裁决

Meaning

to turn something upside down or to reverse a decision or judgment

Example

The court decided to overturn the previous ruling.

法院决定推翻先前的裁决。