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。

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。

A1 pronoun, noun, adjective /wʌn/

one

一

Meaning

the number equivalent to the sum of zero and one; a single person or thing

Example

Only one student answered the question.

只有一个学生回答了问题。

C2 adjective /ˌɒbsəˈlɛsnt/

obsolescent

过时的

Meaning

Becoming outdated or on the way to becoming obsolete.

Example

The obsolescent technology could not compete with modern devices.

过时的技术无法与现代设备竞争。

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。

C1 verb /ˌaʊtˈduː/

outdo

超越

Meaning

To do better than someone else; to surpass.

Example

She always tries to outdo her classmates in exams.

她总是尽力在考试中超越她的同学。

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。

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。

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。

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。

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。

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。

C1 adjective /ˈɔːrdɪnəl/

ordinal

序数

Meaning

Relating to the order or position of something in a sequence (first, second, third, etc.).

Example

The ordinal number 'third' indicates position in a sequence.

序数词'第三'表示在顺序中的位置。

A1 verb /ˈoʊpən/

open

打开

Meaning

to move something so as to allow access; to begin

Example

Please open the door for me.

请为我打开门。

C1 adjective /ˌɔː.riˈen.təl/

Oriental

与东亚国家相关的；东方的

Meaning

relating to the countries of East Asia; eastern

Example

The museum has a beautiful collection of oriental art.

博物馆收藏有美丽的东方艺术作品。

C2 noun /ˈɔːrzmən/

Oarsman

划船者

Meaning

a person who rows a boat, especially as a member of a racing crew

Example

The experienced oarsman rowed the boat across the river.

经验丰富的划船者划船过了河。

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。

A1 adjective /ˈʌðər/

other

其他

Meaning

used to refer to something different from the one already mentioned or known

Example

I don't want this one, I will take the other one.

我不想要这个，我会拿另一个。

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。

A2 verb /oʊˈbeɪ/

obey

服从

Meaning

to follow orders or instructions; to comply with rules

Example

Children should obey their parents and teachers.

孩子们应该服从父母和老师的命令。

C2 noun /ˈaʊtˌrɪɡər/

outrigger

稳定结构

Meaning

a projecting structure on a boat, used for stability, or a boat fitted with such support

Example

The fisherman paddled his outrigger canoe across the lagoon.

渔民划着带有支撑的独木舟穿过泻湖。

C1 adjective /ˌɔːrθəˈpiːdɪk/

orthopedic

与骨骼或肌肉畸形的矫正有关

Meaning

Relating to the correction of deformities of bones or muscles.

Example

She visited an orthopedic surgeon for her back pain.

她因为背痛去看了骨科医生。

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。

B2 noun /wʌn θɜːd/

one-third

三分之一

Meaning

one part of something that is divided into three equal parts

Example

One-third of the class was absent today.

班级的三分之一今天缺席。

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 verb /ˌoʊvərˈθroʊ/

overthrow

幸福

Meaning

To remove a leader or government from power, often by force.

Example

The rebels planned to overthrow the corrupt regime.

她在收到奖项时无法掩饰她的幸福感。

B2 noun, verb /ˈaʊtlɔː/

outlaw

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.

C1 adjective /oʊˈbiːs/

obese

肥胖

Meaning

Extremely overweight; having an excessive amount of body fat.

Example

The doctor advised the obese patient to adopt a healthier lifestyle.

医生建议肥胖的病人采取更健康的生活方式。

C2 noun /ˈoʊpiət/

opiate

Meaning

a drug containing opium or its derivatives, used to relieve pain or cause sleep

Example

The doctor prescribed an opiate to relieve the patient's pain.

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。

C2 noun /ˈoʊ.vər.let/

Overlet

床垫

Meaning

a thin mattress or pad placed over a bed for additional comfort

Example

The overlet makes the bed more comfortable to sleep on.

欧弗雷特使床铺更适合睡觉。

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。

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。

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 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 noun /ˈɒfʃuːt/

offshoot

分支

Meaning

A branch or result that develops from something larger or more important.

Example

The startup was an offshoot of a major tech company.

这家初创公司是一个大型科技公司分支。

C2 verb ˈɑːb.fə.skeɪt

obfuscate

使模糊，掩盖，混淆

Meaning

Render obscure, unclear, or unintelligible.

Example

Politicians often obfuscate facts to mislead people.

政客们经常使事实变得模糊，以误导人民。

A1 pronoun /ˈʌðərz/

others

其他

Meaning

people or things distinct from the ones already mentioned or known

Example

I like to spend time with others.

我喜欢和其他人一起度过时间。

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。

B2 adjective, verb /əbˈskjʊr/

obscure

模糊

Meaning

Not clearly expressed or understood; to make something difficult to see or understand.

Example

The meaning of the poem was obscure to most readers.

诗的意义对大多数读者来说是模糊的。

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。

B2 noun /əbˈsɛʃən/

obsession

痴迷

Meaning

An idea, thought, or concern that continually preoccupies or intrudes on a person's mind.

Example

His obsession with success drove him to work day and night.

他对成功的痴迷促使他日夜工作。

C2 noun ˈɒpjʊləns

opulence

奢华

Meaning

Great wealth or luxuriousness.

Example

The opulence of the mansion was evident in its ornate furnishings.

大厦的奢华体现在其华丽的家具中。

C2 adjective /ɒmˈnɪp.ə.tənt/

omnipotent

全能

Meaning

Having unlimited power; able to do anything; all-powerful.

Example

In many religions, God is considered omnipotent.

在许多宗教中，上帝被认为是全能的。

C2 noun /əˈprəʊ.bri.əm/

opprobrium

耻辱, 侮辱

Meaning

Harsh criticism or public disgrace.

Example

The scandal brought opprobrium on the politician.

丑闻给政治家带来了耻辱。

C1 verb /ˌoʊvərˈruːl/

overrule

驳回

Meaning

to reject or disallow by exercising one's superior authority; to override a decision

Example

The judge overruled the objection from the defense attorney.

法官驳回了辩护律师的反对。

A2 noun /ˈɒf.ɪs/

office

办公室

Meaning

a room or building where people work, usually at desks

Example

She left the office early to attend a family event.

她提前离开办公室去参加家庭活动。

A2 adverb /ˈɒbviəsli/

obviously

显然

Meaning

in a way that is easily perceived or understood; clearly

Example

Obviously, he didn’t read the instructions.

显然，他没有读说明书。

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。

B2 noun /ˈaʊtɪŋ/

outing

短途旅行

Meaning

a short trip or excursion, often for leisure or enjoyment

Example

They had a lovely outing at the beach last weekend.

他们上周末在海滩上度过了一个美好的短途旅行。

B2 verb /ˌoʊvərˈiːt/

overeat

幸福

Meaning

To eat more food than the body needs.

Example

She tends to overeat when she is stressed.

她在收到奖项时无法掩饰自己的幸福。

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。

C2 noun /ɑːlˈfækʃən/

olfaction

嗅觉

Meaning

The sense of smell; the process of detecting and perceiving odors.

Example

Dogs have a highly developed sense of olfaction.

狗的嗅觉非常发达。

C1 noun /oʊˈveɪʃən/

ovation

掌声

Meaning

an enthusiastic show of approval, especially by clapping hands

Example

The actor received a standing ovation after his performance.

演员在表演后收到了站立的掌声。

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 /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 adjective /ˌoʊvərˈrɔt/

overwrought

焦虑 / 过度紧张

Meaning

extremely agitated or nervous; excessively elaborate

Example

She was too overwrought to speak clearly after the accident.

她在事故后太焦虑，无法清楚地讲话。

B2 verb /əˈblaɪdʒ/

oblige

迫使

Meaning

to compel or require someone to do something; to help or do a favor

Example

I would be happy to oblige you with the information you need.

我很乐意为你提供所需的信息。

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。

B2 noun /əbˈzɜːvər/

observer

观察者

Meaning

a person who watches or notices something

Example

The observer took notes during the meeting.

观察者在会议期间做了笔记。

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。

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 /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。

B2 verb /əbˈteɪn/

obtain

获得

Meaning

to get or acquire something

Example

You need to obtain a visa before traveling abroad.

你需要在出国前获得签证。

C1 verb /ɔːrˈdeɪn/

ordain

Meaning

To officially make someone a priest or minister; to decree or order something officially.

Example

The bishop will ordain three new priests this Sunday.

C1 noun /ˈɔr.i.ənt/

Orient

东方，尤其是东亚国家

Meaning

the East, especially countries of eastern Asia; to determine one's position or direction

Example

Many spices come from the Orient.

许多香料来自东方。

C2 noun /ˈɒrɪz(ə)n/

orison

祷告

Meaning

a prayer, especially a devout or formal one

Example

He whispered a quiet orison before going to sleep.

他在睡觉前低声祈祷。

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。

B2 verb /əˈpoʊz/

oppose

反对

Meaning

to disagree with or resist; to act against

Example

Many citizens oppose the new tax policy.

许多公民反对新的税收政策。

B1 verb /əbˈzɜːrv/

observe

观察

Meaning

to watch carefully; to notice or perceive something

Example

Scientists observe the behavior of animals in the wild.

科学家观察野生动物的行为。

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。

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。

C1 adjective /ˌaʊt ən ˈaʊt/

out-and-out

完全

Meaning

complete; absolute; used to emphasize something extreme

Example

The speech was an out-and-out lie.

这个演讲是一个完全的谎言。

C1 verb /ˈɒp.tɪ.maɪz/

optimize

优化

Meaning

To make the best or most effective use of a situation, opportunity, or resource.

Example

The company is working to optimize its supply chain.

公司正在努力优化其供应链。

C1 adjective /ˈəʊnərəs/

onerous

繁重

Meaning

involving a great deal of effort, difficulty, or burden

Example

Fulfilling the contract proved to be an onerous task for the company.

履行合同对公司来说是一项繁重的任务。

B2 verb /oʊˈmɪt/

omit

遗漏

Meaning

to leave out or exclude; to fail to include something

Example

Please don't omit any important details from your report.

请不要遗漏报告中的重要细节。

B2 noun /ˈaʊtˌfɪt/

outfit

服装

Meaning

A set of clothes worn together, often for a particular occasion.

Example

She wore a beautiful outfit to the party.

她穿了一套漂亮的服装去参加派对。

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。

C1 adjective /ˌoʊvərˈbloʊn/

overblown

夸张

Meaning

excessively exaggerated or inflated

Example

The controversy was overblown by the media.

媒体过度夸大了争议。

A1 adverb /ˈɔːfən/

often

经常

Meaning

frequently, many times

Example

I often visit my grandparents on weekends.

我经常在周末拜访我的祖父母。

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。

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 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。

C1 noun /oʊˈbɪt.ʃu.er.i/

Obituary

讣告

Meaning

a notice of someone's death published in a newspaper; biographical account of deceased person

Example

The newspaper published his obituary yesterday.

报纸昨天发布了他的讣告。

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。

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 verb /ˌoʊvərˈpeɪ/

overpay

支付过多

Meaning

To pay more than is necessary or reasonable.

Example

She realized she had overpaid for the concert tickets.

她意识到她为音乐会门票支付过多。

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。

B1 verb /oʊ/

owe

欠债

Meaning

to be under obligation to pay or repay; to be indebted

Example

I owe my success to my parents' support.

我将我的成功归功于父母的支持。

C1 noun /ˈɑn.set/

Onset

开始; 起始

Meaning

the beginning or early stages of something; the start of a medical condition

Example

The onset of winter brought heavy snowfall.

冬天的开始带来了大雪。

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。

B1 noun /aʊl/

Owl

猫头鹰

Meaning

a nocturnal bird of prey with large eyes and a hooked beak

Example

The owl hooted softly in the darkness of the forest.

猫头鹰在森林的黑暗中轻轻地叫了。

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。

C2 noun ˈoʊʃən ˌstrætɪfɪˈkeɪʃən

ocean stratification

海洋分层

Meaning

The formation of layers in ocean water due to differences in density.

Example

Ocean stratification affects marine biodiversity.

海洋分层影响海洋生物多样性。

C2 noun /oʊˈbeɪsəns/

obeisance

敬礼

Meaning

A gesture of respect such as a bow or curtsy.

Example

They bowed in obeisance to the king.

他们向国王行了敬礼。

B1 noun /ˈɔːfɪsər/

officer

警官

Meaning

a person in a position of authority, especially in law enforcement

Example

The officer gave him a ticket for speeding.

警官因超速给了他一张罚单。

C1 verb /əˈfɪʃieɪt/

officiate

主持

Meaning

To perform official duties, especially in a ceremony or as a referee.

Example

The priest will officiate the wedding ceremony.

牧师将主持婚礼仪式。

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 /oʊˈpaɪn/

opine

表达意见

Meaning

to express an opinion or belief

Example

The professor opined that the policy would fail.

教授认为政策会失败。

B2 noun /ɒpˈtɪʃən/

optician

眼镜师

Meaning

A person who makes or sells glasses and contact lenses.

Example

The optician adjusted my new glasses to fit better.

眼镜师调整了我的新眼镜，以便更好地适应。

A2 pronoun /aʊərˈsɛlvz/

ourselves

我们自己

Meaning

used by the speaker to refer to themselves and one or more others as the object of the verb

Example

We should help ourselves before helping others.

我们应该在帮助他人之前先帮助自己。

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。

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。

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。

C2 noun /oʊˈbleɪʃən/

oblation

献祭

Meaning

a religious offering, especially of bread or wine to God

Example

The priest placed the oblation on the altar during the ceremony.

祭司在仪式中将献祭放在祭坛上。

C1 noun /ˌɑːsɪˈleɪʃən/

oscillation

摆动

Meaning

The movement back and forth at a regular speed.

Example

The oscillation of the pendulum controls the clock.

摆锤的摆动控制着时钟。

C1 adjective /ˌaʊtˈspoʊkən/

Outspoken

直言不讳

Meaning

frank; speaking directly

Example

She is known for being outspoken about social issues.

她因直言不讳地谈论社会问题而闻名。

B2 noun /ˈɔːrɡənaɪzər/

organizer

组织者

Meaning

a person who arranges or coordinates activities, events, or groups; a tool or item used to keep things in order

Example

She worked as the main organizer of the international conference.

她是这次国际会议的主要组织者。

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。

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。

B2 adjective /ˈɒp.tɪ.məl/

optimal

最优，最适合的

Meaning

Best or most favorable; the most effective under particular conditions.

Example

The optimal temperature for plant growth is around 25°C.

植物生长的最优温度大约是25°C。

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。

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 /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。

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。

C1 noun /ˈɑːdəsi/

odyssey

漫长的旅行

Meaning

a long, adventurous journey; a series of experiences

Example

Her career has been an odyssey of challenges and achievements.

她的职业生涯是一场挑战和成就的漫长旅行。

C2 verb /ˌoʊvərˈliːp/

overleap

跳过

Meaning

To jump over something; to omit or disregard something.

Example

He managed to overleap the fence easily.

他轻松地越过了栅栏。

C1 noun ˌɒk.sɪˈdeɪ.ʃən

oxidation

氧化

Meaning

A chemical reaction that involves the combination of a substance with oxygen, often causing deterioration.

Example

Oxidation causes metal surfaces to weaken.

氧化会削弱金属表面。

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 /ˌɒp.əˈtjuː.nə.ti/

opportunity

机会

Meaning

A favorable chance or set of circumstances that makes it possible to do something.

Example

She seized the opportunity to study abroad.

她抓住了去国外学习的机会。

C2 noun ˌɒbfəsˈkeɪʃən

obfuscation

混淆, 迷惑

Meaning

The action of making something obscure, unclear, or unintelligible.

Example

The obfuscation of the data made it difficult to interpret.

数据的混淆使得它们难以解释。